Blood type

Do you know your blood type? If you haven’t been in any medical situations where blood type is important, you might not.

We know that there are 8 main blood groups that make up most of the world’s population.

But it turns out that scientists still don’t know why we evolved different blood types. And that may remain a mystery for a long time. But from now, science can at least tell you about your own blood.

Knowing your Blood type

In develops parts of the world, it’s not crucial to know your blood type off the top of your head. Doctors will typically run tests before any major procedure and if there’s any doubt in a medical emergency, you’ll most likely receive O negative blood, because that’s the universal donor blood that’s save to give to any A, B, AB or O recipient.

Blood type experiments

For thousands of years nobody really understood blood. A Greek doctor Claudius Galenus from 200 CE believed that it was created food and liver, and this school of thought lived on for nearly 1500 years.

It wasn’t until in the 17th century A british doctor named William Harvey, discovered that blood actually circulated through the body. This spawned A new age of experimentation with blood.

In 1665, an English physician successfully kept one dog alive by transfusing it with a blood of another dog. Just two years later, doctors began experimenting with Xenotransfusions. That is transfusing humans with animal blood, such a sheep. And those human patients died.

It wasn’t until 1900 that we finally realised people and animals actually have different types of blood that determine whose blood can mix with whose. That’s where different letters came into play.

If you’re type A, your immune system will perceive type B blood as an intruder and trigger auto immune response that can cause

  • kidney failure,
  • extensive blood clotting, and
  • even shock.

The reverse is true of type B blood. The immune system will attack type A.

AB blood however, accept both A and B blood without triggering the auto immune response. These things get little bit complicated when introduced there negative and positive part of your blood type. Positive can’t accept negative, but the opposite is extremely dangerous.

Other than 8 Blood types

To further complicate things scientists have discovered dozens of more blood type, such as the Duffy blood group, which can determine your susceptibility to malaria. Or the Hh blood type, which 1 in 10,000 people in India have. But the vast majority of the humans fall into this A, B, O system.

As per why humans evolved this complicated system of blood types and compatibility, we really don’t know. The original mutations are thought to date back nearly 20 million years. But whatever the biology is behind blood typing, it’s a real practical thing that matters.

It’s just not a bad idea to know your blood type. If you’re traveling somewhere that’s rural, or doesn’t have access to advance medicine, it’s good for you and your travelling companion to know your types, just in case of an accident along the way. In big emergency closer to home, blood banks often put in calls for donors of a specific type. And remember if you’re type O Negative, you’re an extremely useful universal donor. So, knowing your type can give you a peace of mind.

Your body when you Swim

Harvard medical school published a study which looked at over 40,000 men, aged 20-90 who were either runners, walkers, swimmers, and physically in active people. With an average length of 13 years of observation and in that time

  • 2% of swimmers passed away
  • 8% of runners passed away
  • 9% of walkers passed away
  • 11% of physically inactive people passed away

This study showed that swimmers are much healthier later on in life than the rest of the population and for women swimming just 30 mins a day can decrease coronary heart disease by 30 to 40 percent.

It also helps to increase HDL aka good Colestrol. Some studies have also shown that aerobic excercise can keep the cells in the lining of your arteries more flexible and healthier. Hence there is no question that swimming is an awesome form of fitness.

Body during swimming

What do you actually feel when you go into the water? Here are some main elements of the human body that gets impacted during swimming.

1. Blood

According to the America Heart Association, swimming is considered as Aerobic activity. Aerobic excercise enlarges the heart and it increases the blood flow through the entire boby. Because swimming is an excercise, the blood has to pump all the molecules into the body.

2. Heart

Since so much of blood has to be pumped into the body, that ties into how it impacts your heart because we know that after 2 mins your body goes into aerobic respiratory because your heart has to pump all the oxygenated blood through the body. So as you swim, your heart is circulating the blood which help your body to perform and achieve the required goals.

3. Skin

You must have seen that the skin color changes of swimmers. For example, some swimmers face turns red when the swim, that happens because your blood vessels are dilating and the brings the heat to the surface into the skin then some people turn red, as a result your skin is showing the effort that you’re putting in the water.

4.Muscles

There’s a reason why swimmers are considered to have best body and physiques in the world compared to any athlete, because swimming engages every single muscles in the water when it comes to your core stability, your upper body, your biceps, your hamstrings, your calves, everything is engaged when you swim.

When you’re swimming, you are micro tearing your muscles while swinging it. And the muscles requires 24-48 hrs to recover those muscles. That’s when sometimes you might feel sore.

5. Lungs

Swimming can actually help increase your lungs volume because in swimming different than other sports, you can’t actually breath whenever you want. It’s not like running when you have full access to oxygen.

In swimming you’re engaging your muscles and you’re not allowed to breathe necessarily at the time when your body might want it. So because you have to get used to this, you actually increase your Vo to max (maximum amount of oxygen body is able to use). So basically you are making your lungs more efficient at functioning.

6. Brain

The Brain loves swimming, because of all the extra blood flow moving through these endorphins that makes you more awake, alert and focus.

But this could happen in any type of sport but swimming is something really special because you’re sort of in your own world where the medium is 800 times more dense than air, which makes you feel free and relaxed.

Hence, from physical health to mental health, swimming is an incredible benefit human body and after reading this you must be thinking of trying swimming.

Being Bilingual

People have very different opinions on what bilingualism really is. For some it means speaking two languages fluently and with little to no effort rather strongly consider a person bilingual, if it has perfect pronounciation in both languages and makes very few grammatical errors while talking.

The truth is that, even with a bad accent and making some mistake, being able to speak in two or more languages rather than one has practical benefits in an increasingly globalised world.

Multilingualism

Multilingualism has been shown to have many psychological and social advantages that can go something simply as

  • watching movies with no subtitles
  • to having less problems in traveling and
  • even getting a job or business opportunities specially in tourist areas.

Types of Bilingualism

It is considered to be two types of Bilingualism

1. Compound Bilingualism

Compound Bilingualism, also called addictive Bilingualism happens for example when a child is raised by bilingual parents and both languages are used in home, the child grows when both languages are used simultaneously in the same environment.

With this type of Bilingualism, the person does not see the two languages as separate it is common to hear such people speaking different languages in the same sentence or using a word of a different language from the one they’re talking to better express themselves.

2. Coordinate Bilingualism

This is the second type of Bilingualism also know as Subtractive Bilingualism. In this type, the person perceive two languages as separate because he learns them separately and in different environments in context.

I am an example of coordinate Bilingualism, most of the time i talk Hindi when I’m in my college environment or to people who talks only that language, I use the language specifically for those context but to my family members i usually talk in Bengali which is my native language, the language related to my home environment. I see these two language as separate since I learned and used them in completely different environments.

Officially Monolingual Countries

Only a few countries in the world including the U.S, England, and Australia are officially Monolingual but even in these countries only a considerable percent of people who speaking and understand more than one language.

Advantage

Researchers suggest that bilingualism can slow the advance of age-related mental issues such as Dementia and Alzheimer’s by up to 4 years.

Also in bilingual adult, brain tissue called grey matter is denser compared with Monolingual adults.

Although speaking more than one language does not necessarily make you more intelligent person, it helps stimulates and increase brain connections. Learning a new language is like an excercise to the brain that will improve your Cognitive skills and even if you grew up in a Monolingual environment, it is never too late to start learning a different language.

Where did Necktie came from?

The neckties, also known as decorative noose are a narrow piece of fabric designed to be worn around the neck and tied at the throat. They can be made from many materials but commonly constructed from silk or cotton.

Varieties

Today there are many different kinds of neckties:-

  • Ascot tie
  • The zipper tie
  • Clip on tie
  • The tie dye tie

So when did wrapping a piece of fabric around your neck become a formal style necessity. The length of World War to blame can partially be placed on the French Military. While humans have been tying fabric around their neck since they could sew.

History

The neckties is been known as it didn’t start crowding collars until the 17th century. King Louis XIII of France had hired Croatian mercenaries to fight for him during the 30-year war and the king was impressed by the length of cloth the Croatian used to keep their jackets together.

Croatian

Louis liked it so much that he required his entire royal court to wear them a tradition that his son will continue in his court. The trend soon spread across the French aristocracy and it wasn’t long before all of the Europe had converted to the curve at.

Tying a Necktie

There are four main ways to tie a neckties;

  1. The Four-in-hand knot
  2. The Pratt knot aka The Shelby knot
  3. Half-windsor knot
  4. The Windsor knot

According to researchers from Cambridge Cavendish Laboratory, there are 85 ways to tie a tie. Thomas Fink and Yong Mao actually use Mathematical modeling to figure this out and publish a book on their finding.

Towards the end of tie fashion

The necktie is losing its grip around the throat of male fashion. Tech companies such as Google, Amazon, and eBay actually encourage their employees to dress casually with some going as far as banning traditional office wear entirely and other companies are following suits.

Its fast become a power move to dress drown to the office in the 21st century as a statement of fellow workers, you can wear what ever you want.

Californian companies have led the charge in disrupting many common business practices, by rejecting aspects of corporate life that once seemed to given such as

  • Traditional working hours
  • Corporate hierarchies
  • Paying employees a living wage

Now politicians and even royalty are leaving tie in their dresses so it many not be long before neckties joins the history books of pointless male neck fashion.

BODY DYSMORPHIC DISORDER(BDD)

Body Dysmorphic disorder is a mental disorder marked by an obsessive of perceived defects or flaws in once appearance. A flaw that to others is considered minor or not observable.

People suffering from BDD

  1. Can feel emotion such as shame and disgust concerning a part or parts of their body part and fixate on this.
  2. The obsession is so intense that the person repeatedly checks and compares the perceived flaw seeks reassurance sometimes for several hours each day.
  3. The person can also adopt unusual routines to avoid social contact that exposes the perceived flaw.
  4. This pervasive thoughts about their appearance and body image interfere with their daily life via
    • Educational
    • Occupational dysfunction and
    • Isolation

No matter how many times people assure them that there is no flaw, they cannot accept that the issue doesn’t exist.

The most common features about which people obsess includes:-

  • Nose
  • Wrinkles
  • Acne
  • Complexion
  • Blemishes
  • Hair
  • Skin
  • Vein appearance
  • Muscles size
  • Tone
  • Breast size
  • Buttocks
  • Genitalia

BDD is estimated to affect up to 2.4% of the population. The condition usually starts during adolescence affecting both men and women. BDD does not go away on its own if Untreated it may get worse with time leading to

  • severe depression
  • Anxiety
  • Substance abuse
  • Suicidal thoughts and behavior

Causes

The exact cause is unknown, but like every other disorder BDD may result from a combination of causes such as:-

  1. Brain differences
  2. Environmental factors; special if they involve negative social evaluations about the body or Self-image
  3. Childhood trauma
  4. Genetics; studies suggest that BDD is likely to run in family.

Certain factors that may increase the risk of developing the condition may include:-

  1. A family history
  2. Negative body image
  3. Perfectionism
  4. Negative life experiences such as bullying or teasing
  5. Introversion
  6. Media influence.

Symptoms

Extreme preoccupation with a perceived flaw in your physical appearance that appear minor to others for at least one hour a day. Attempting to hide perceived flaw with –

  • styling, makeup or clothes – to seeking plastic or cosmetic surgery,
  • avoiding social situations,
  • constantly comparing appearance with others,
  • always seeking assurance about appearance from others,
  • low self-esteem, compulsive behaviour such as skin picking and frequent clothes changing.

Extreme preoccupation with an appearance that interferes with social life work, school, or other functionality.

Diagnosis

A medical evaluation will be carried out other medical conditions after which further evaluation is carried out by a mental health professional.

Diagnosis is based on:-

  1. A psychological evaluation; which aims at assessing risk factors and thoughts feeling as well as behavior can be associated with a negative self-image.
  2. Personal, medical, family and social health history.

Treatment

Treatment option may include therapy and medication includes:-

  1. Cognitive behavioral therapy; that helps you learn how to cope and behave to improve your mental health
  2. Medications; such as SSRIs may help is control obsession and control repetitive behaviours

Psychiatric hospital may be suggested if the symptom is severe such as when you’re in immediate danger of harming yourself.

Famous personality with BDD

Here is a list of people with BDD;

  • Michael Jackson(singer, dancer)
  • Billie Elish (singer)
  • Robert Pattinson (from twilight)
  • Ileana D’Cruz (from Rustom)
  • Miguel Herrán (from money heist)

History of Indian Stamps

India got independence on 15th August of 1947 assured in a new era in the history of the country but philatelist had to wait another 98 days for the release of India’s most commemorate stamp on 21st of November 1947.

First stamp

The Postal Telegraph Department however came out with a large Kashi postmarked with the slogan “Jai hind” for the occasion and letters mailed that the major post offices of the country were cancelled with this post mark.

The India’s first commemorative stamp features the Lion capital of Ashoka which had one set on the top of a column of Sarnath near Varanasi. The lion capital has since been around at the state emblem of India the denomination of the stamp was one and a half annas and an inspiration of “Jai hind” in Hindi was also depicted in the stamps.

Other stamps

Actually three stamps were planned to release at the time of Independence. The rest two stamps were released in the 15th of December 1947 with the three and a half annas stamp with portray of the national flag in tricolor Saffron on the top, white in the middle and green in the bottom.

The twelve annas stamp depicts an aircraft a symbol of the modern age. These stamps also have inscription “Jai hind” in hindi, they are also known are Jai Hind stamps.

The stamps were printed offset lithography. As the three and a half annas stamp was printed in three colors in three steps because difference in inking at different stages, because specimens having the top of the flag in deep orange or pale orange and the lower part in pale green and deep green were coming across.

Petroleum Jelly is harmful to skin

You probably have a jar of Vaseline somewhere in your house. Millions of people swear by it as a remedy for clapped lips, congestions, diaper rash and dry skin. Unfortunately the popular product is more harmful than many realise.

What is Petroleum Jelly?

Petroleum jelly, commonly known by the brand name Vaseline, is a byproduct of the oil refining process. It was originally found coating the bottom of oil rigs in the mid 1800s. As a byproduct of the oil industry, it’s an unsustainable resource and far from eco-friendly.

How does it work?

Used in everything from lotions to baby products, petroleum jelly works by creating a protective barrier on the skin to hold in moisture. The waterproof barrier it created on the skin blocks pores and can lock in residue and bacteria.

When used on a burn or a sunburn area, it locks in heat and can block the body’s ability to heal. You need to stop using Vaseline for these four reasons:

  1. It contains harmful Hydrocarbon. The skin is unable to metabolize petroleum jelly, so it sits as a barrier on the skin untill it wears off. This blocks the body from gaining any benefit from the substance. A 2011 study found strong evidence that the mineral oil hydrocarbon Vaseline contains are “the greatest contaminant of the human body”
  2. It Promotes Collagen Breakdown. Due to the barrier that petroleum jelly creates on skin, it blocks the skin ability to breathe and absorb nutrients. This can cause the skin to pull the moisture and nutrients it needs from within, leading to collagen breakdown.
  3. It can leads to Estrogen dominance. Estrogen dominance occurs when the body has high levels of estrogen and low levels of progesterone. It has linked to infertility, menstrual problems, allergies and autoimmune problems. Petroleum jelly contains chemicals called xenoestrogens which are believed to increase estrogen problems.
  4. It can cause pneumonia. Although rare, a condition known as lipid pneumonia can occur when small amounts of petroleum jelly is inhaled and build up in the lungs. Because the body can’t metabolize or breakdown the substance, a severe inflammation in the lungs can occur.

Natural Alternatives

There are several natural alternatives to petroleum jelly that you can use without worrying about health risks. If you’re looking for a simple alternative, try one of these options:-

  • Shea butter – High is vitamin A, E and F, shea butter works to nourish the skin through the beneficial fatty acids it contains. It can also help reduce inflammation and increase collagen productions.
  • Beeswax – a great alternative to petroleum jelly is Beeswax. It can be blended into homemade beauty products to protect the skin. Add it to a homemade lip balm and body cream.
  • Coconut oil – this oil loaded with health benefits. It works to nourish the skin through the fatty acids, lauric acids and anti-inflammatory compounds.
  • Coco butter – it contains antioxidants and benefits fatty acids. It may even reduce the signs of ageing.

Why does a student need to be industry ready & how they can be?

What do you mean by industry ready?

An industry expects their employees to have Non-technical skills and personal attributes such as team work, communication skills, integrity, reliability and self-motivation are considered more important than purely technical skills to get industry ready.

Importance

A study shows that 50% of the curriculum that are been taught in college/universities, by the time students will graduate, it will get auxiliated with new technologies in the market.

Let’s say for example, a product manager of a company who advertises the product, collects data and analysis the data to improve the marketing strategies of company. He can do it manually, but with time if an app is developed for this work, the company won’t be requiring any product manager.

Although degrees are important for future but it is also important to have a knowledge about what all techniques and skills that will be there in future and also to start developing those skills.

How can students be industry ready?

Here are some ways of getting industry ready:-

  1. Practical Knowledge of Doing Things:- If you can demonstrate how to implement the theoretical knowledge you have then your chances of getting hired will improve significantly.
  2. Sharpen Your Communication Skills:- If you are not able to communicate properly, your knowledge will be of little use to you.
  3. Inculcate the Habit of Innovation:- Form a habit to think out of the box, if you can provide a company with a method to save on expenditure or increase their profit, you have better chances of getting hired.
  4. Read Books and Newspapers Regularly:- Form a habit to read a newspaper or book at least half an hour daily, as this will improve your thinking process as well.
  5. Build Your Profile to Show Your Accomplishments:- One needs to be presentable and be able to exhibit his or her qualifications and capabilities convincingly.
  6. Pursue Online Courses to Hone Your Skills:- To make yourself industry ready, it is better to learn some new skills online.
  7. Work on Your Weak Areas:- The trick here is to present your weaknesses in a way that it looks profitable to the company for whom you want to work for.
  8. Learn to Organize and Manage Your Time:- It is about getting the maximum output in a given amount of time. Productivity matters a lot when you are working for a company.

So start investing more on prolonged and sustainable skills because knowledge and degrees are not going to be most required in future. This is the time to decide what is to be done and how should the steps be taken forward.

Will you take Chinese vaccine?

Made in China, accept it or not but for many of us this label has become synonymous with low cost and low quality. So how true is the stereotype and what has Chinese done to deserve such a bad reputation? Well the list goes long, the latest item is vaccine.

China has sold vaccines to the World which may not be working. It is currently exporting vaccine to 43 countries with:-

  • a total of 742 million doses that have been sold,
  • 22 million doses have been donated,
  • 262 million doses have been delivered.

China is exporting 3 major vaccines:-

  1. Sinovac
  2. CanSino BIO
  3. Sinopharm

But do these vaccines even work? Let’s look at some of the countries those have received Chinese vaccines.

Mongolia

In Mongolia, more than half of the population is fully vaccinated but daily infection has risen by more than 70% in the last 2 weeks, and they’re using the Chinese vaccine Sinopharm. No doubt Mongolians are questioning the effectiveness of the Chinese vaccine.

Bahrain

Bahrain an Asian country is witnessing a surge. There’s a sharp rise in the number of infections and this dispite of high levels of inoculation. How will China explain this? China’s Sinopharm vaccine, accounts for 60% of the inoculation. Bahrain is now administering a Pfizer booster shot for those who have received both doses of vaccine.

Seychelles

Seychelles of East Africa, 61% of the population have been vaccinated with just 100,000 of people. This island nation has the highest vaccination cover globally. It’s daily average cases rose up to 400 with 37% of the fresh infections reported in fully vaccinated people. This is the result of the Chinese vaccine they’re using which is Sinopharm.

UAE

The United Arab Emirates has vaccinated more than 38% of the population with more than 51% have received first dose and yet daily new cases exceeded to 1700. And they are also using the vaccine Sinopharm that was received from China and UAE is also questioning the efficacy of the Chinese vaccine and also giving a Pfizer booster shot to Sinopharm recipient.

Countries who have refused

Philippines

In the month of May, the Philippines President apologized and asked China to take away Sinopharm vaccine back. He sent back the doses because Chinese cure is unproven.

Saudi Arabia

Saudi Arabia has also refused to recognise certificates of Sinovac and Sinopharm. It is recommending Pfizer and AstraZeneca instead.

Do Chinese vaccines works in China

There’s a fresh out break of new infections that are been reported in the Guangdong province of China. Guangdong with its capital Guangzhou, accounting of 90% of the confirmed cases. Health authorities of the capital blames the delete variant which was first identified in India. A strict lockdown has been composed there overseas arrivals are being quarantined, million have forced to indoors.

Hence its proven that the rumours of China had conquered the pandemic was false. The virus is unpredictable, it keeps spreading. Vaccines are not full proof in preventing infections but if one vaccine has repeatedly proven ineffective then it’s time for some reflection.

Narcissistic Personality Disorder

Narcissistic personality disorder or NDP is a personality disorder characterized by grandiosity. You may see it in people who have an inflated ego, with little regards to others. It is important to note that NDP is a psychiatric condition, and it is more complex than simply being arrogant. It’s distressing for those who have it and for those who’re around them. Hoping to shed some light on the condition, and sign that a person should seek help. While much of T.V and movies portray narcissism as people who feel like they’re better than everyone else, it’s usually not just the case.

What is narcissism?

Narcissism is a set of traits classified and studied by psychologists. The psychological definition of narcissism is an inflated, grandiose self-image. To varying degrees, narcissists think they’re better looking, smart and more important than other people and that they deserve special treatment.

Psychologists recognize two form of narcissism as personality traits:

  • Grandiose
  • Vulnerable

What is NDP?

  • NPD is a personality disorder in which the person feels self-important and craves constant validation.
  • Their feelings of superiority often hint at a deeper problem.
  • As their need of validation often comes from a place of insecurity and instability rather than genuine self love which they may not be aware of.

What causes NPD?

  1. While the cause of NPD is unknown, researchers believe that it has to do with a combination of genetic and environmental factors.
  2. It’s believed that 6% of people have this disorder. Men have a higher chance of this disorder than women.
  3. Some believe that NPD is developed to cope with trauma and feelings of inadequacy. Others believe it may be learned in early childhood from dealing with anything, from abuse to excessive pampering.
  4. There is even a debate as to how much of the disorder is passed down from parents to children acquiring the disorder.

What are the signs and Symptoms?

The feeling of grandiosity where they feel that they’re superior to others and low empathy are often seen in those with NPD; they don’t care much for others expecting to receive constant validation.

  • People with NPD feel as though they’re entitled to whatever they want which can be dangerous as it can manifest into toxic relationships.
  • They may manipulate others to get what they want.
  • They brag and exaggerate their achievements or feel envious of anyone that outperforms them, but deep down the person with NPD may be really dealing with their own feeling of inadequacy.

How to get help?

  • People with NPD may not seek help for the disorder itself as they may not know that there’s an issue.
  • Usually, people are diagnosed because they seek treatment for other issues such as depression or addiction.

However people who feel that they may have the condition and urged to reach out for help. NPD and the underlying feelings of inadequacy can be treated. It not only benefits the individual, but also to people around them.

What treatment options are available?

People diagnosed with narcissistic personality disorder will most likely work with a therapist using psychotherapy methods.

Other self-improving activities such as:-

  • Doing exercises and,
  • Hobbies may be used in conjunction with therapy.

Coming to a conclusion, we do live in a very materialistic and Consumersious society and as long as that’s the case, narcissism is going to win because it’s about putting yourself first and not caring as much about others. Not to mention people with NPD can be very generous when it’s going to get them what they need. They may buy everyone big dinners and take everyone on a big vacation so it creates this illusion that there’s lots of people all around them, because it’s all the stuff that they’re making possible for them. It’s important to know that treatment is available and that life can be made more manageable.

Pollution causes blindness

Air pollution is a global malice. It destabilzes the climate, punishes our lungs and now according to a new study could possibly affect our eye sight or might make you blind.

The research was published in the British Journal of Ophthalmology, it analysed 115,000 participants over 14 years. At the start of the study in 2006, these people have no eye problems but in the latest medical examination , 1,286 of them reported A.M.D (Age related Macular Degeneration). It is the leading cause of blindness among the people aged 50+ in rich nations. There are 200 million people living with this condition.

There appears to be a link between A.M.D and air pollution. People exposed to fine particulate matter are more vulnerable to A.M.D, nearly 8% vulnerable and this isn’t from industry level exposure. Even relatively low level of air pollution could be triggering A.M.D.

Effect on eye sight

The eyes have particularly high flow of blood. This leaves them vulnerable fine particles that flow through the body. It’s important to note that this study is observational. It cannot categorically establish a link between air pollution and A.M.D. However there has been similar study elsewhere with the same results. And the link between smoking and A.M.D has always been known.

The threat from air pollution has always been clear, but new studies are revealing more dimensions of this threat.

The World Health Organization (WHO) estimates that air pollution contributes to 7 Million deaths annually. This leaves us with another cause of concern, toxic air could leave you blind.

History of Dentistry

From brushing and flossing to straightening and whitening, people today put a lot of work into maintaining a health and appearance to their smile. The current trend is for straight, pearly white teeth. But history of dental care stretches all the way back to the beginning of human society.

Ancient ways of cleaning teeth

Prehistoric humans who lived before the advert of oral care actually had very few dental problems. Scientists believe this is on account of their diet, which consisted of unprocessed fibrous foods that help clean their teeth while they ate. However as human evolved, so did the food on menu. Overtime, people found if they didn’t take care of their teeth, they developed dental problems.

Archaeology found evidence that early humans cleaned their teeth by picking at them with things like porcupine quills, animal bones, and tree twigs.

In earlier 3,500 BCE, Mesopotamians were using chew sticks to clean their teeth. Egyptian and Chinese have known to use them as well.

Tooth Decay

Ancient people were always aware of the tooth decay. But the first known scientific theory about its causes dates back at least 5,000 years, to Ancient Sumeria. The theory was that cavities were caused by a creature known as the tooth worm, which they believed would wore holes in teeth.

Cavities can actually resemble the kinds of holes that the worms bore through other materials, like wood. The Sumerians, Greeks, Egyptian, Chinese, Japanese, and Indian people all believed in the tooth worm. Some European doctors were still warning people that worms were the cause of their tooth decay as late as the 14th century.

First Toothbrush

Though no one knows exactly when people started brushing their teeth, archeologists believed the practice originated somewhere in the neighborhood of 3,000 BCE. The Babylonians and the Egyptians were the first cultures we know of to fashion rudimentary toothbrushes, which were made mostly from twigs.

The first used bristle toothbrush was created in China sometime during the Tang dynasty, between the 7tg and 10th centuries. It was made from hog bristles which would have been attached to a handle carved from bone or bamboo.

Explorers eventually brought these to the West. And in the 17th century, they began to be adopted in Europe.

New trend

In modern times, the dental ideal is considered to be a bright smile with straight white teeth. People will wear braces, use whiteners, to achieve the look. But most didn’t realise, its a relatively new fashion.

The popularity of look really only goes back to the 20th century and was greatly created by Hollywood movies. The trend, arguably, began their veneers, created by cosmetic dentist named Marcus Pincus in the 1940s. It was spotted by movie stars, like Shirley Temple and Judy Garland, who became famous for perfect smiles.

Judy Garland

While mass market teeth whitening products didn’t became a thing until the 1980s, teeth whitening itself is nothing new.

Introducing Skateboarding in Olympics

In recent history, skateboarding has become a pop culture phenomenon. We see it in everything, from T.V advertisements to fashion shows. And for the first time ever, skateboarding will be introduced in the 2020 summer Olympics. But, skateboarding hasn’t always had the mass appeal we see today.

Brief history

Sometime in the late 1940s or early 1950s, skateboarding was born out of the boredom of surfers when the waves were no good. They would remove the wheels from the roller skates and attach them to a piece of wood to create a skateboard.

By the 1960s, skateboarding’s popularity has grown with rise of surf culture. Contest were held all over and the first sponsored skateboarders were beginning to emerge. However, the popularity of skating in the 60’s dropped just as fast as it rose.

The 1970’s brought along one with the most important changes to the skateboarding world, the advent of the Urethane wheel, which allows skaters to ride faster are over rougher types of ground than ever before.

In 1976, a horrible drought in southern California forced most homeowners with backyard swimming pools to drain them, giving way to birthplace of pool skating. This was the first major shift in how people rode there skateboards. No longer were they limited to the abysmal, flat grounds of parking lots and sidewalks.

The 1980s were a time of Renaissance in skateboarding. People were constantly inventing new tricks, pros were earning unheard of amounts if money, and skateboarder-own companies were thriving.

The vert

The favourable terrain for most of this era was vert. And even though there was a high level of progression occurring, to the untrained eye, skateboarding had gone stale and the popularity once again fell flat.

This lull in skateboarding led to the introduction of street skating which brings us into the 1990s. Skating during the era was at its most raw. Skaters took to the streets, to find new terrain, abandoning traditional skaters parks for something that felt more natural and could be done anywhere, by anyone.

Popularity

Skating things that occur almost anywhere, like sets of stairs, handrails, benches, curbs, and just about anywhere four wheels can roll. From there, skateboarding has been a nonstop, uphill climb to what it is today.

At its core, skateboarding has traditionally been for the underdogs, the outcasts, the misfits, and in result has been thought of negatively by a large major of its existence. But now, with generation of young adults who grew up with skateboarding and the exposure at an all-time high, the future of skateboarding is looking bright.

Why India can’t have an Official Language

Our Home Minister Amit Shah mentioned about promoting one nation, one language in one of his tweets in 2019. He also added that it should not be done at the cost of other languages. Some of us might know that 14th September is celebrated as Hindi Diwas in our country. So why can’t we have Hindi as an official language?

Critics

After Amit Shah statement, critics said that if Hindi becomes the official language, then other languages like malayalam, tamil, telugu and more, will lost their importance. South Congress leader Jairam Ramesh also said “this one nation, one language will never be a reality” because it will never be easy to have a common language in India.

Also in the New Education Policy (NEP) draft in the year 2019, Hindi was asked to make mandatory in every state. This was also criticized by the South Indian governments and they refused to dilute the state’s two language formula. This resulted in changing the draft and not to have Hindi as an official language.

Steps taken

India is a big nation, so there should be a language that will represent India on world stage. Talking about Hindi, it is spoken in India, Fiji, Suriname, Mauritius, Trinidad, Tabogo and Guyana. So India is working actively to have Hindi recognised as an official language of the UN.

Advantage of having an official language

A Chinese research concluded that

  1. When we have an official language, it can even help to eliminating poverty. As China have experience in fight poverty so we can also learn the power of having an official language.
  2. China also mentioned that an official language also helps in having communicate without any language barrier.
  3. Official language also help to built unity among the citizens
  4. Also helps when people migrate from one city to another, as they can communicate in the same language.

Disadvantage of having an official language

According to the 2001 Census, 41% of India population are native speaker of Hindi dialect. But what about 59% of the population who are non – Hindi speakers? Politician Shashi Tharur said

India should not even try to add Hindi to the list of official language of UN because what if in future our PM is from South part of India and does not speak Hindi, then how will he give speech in Hindi on behalf of India.

But apart from all these we still agree that there should be an official language for a country to function.

As per as official language is concerned,

  1. English is also been promoted in India. Promoting English can result in heavy school fees, as we’ll have to teach the whole population to speak English.
  2. Enough English teacher will also be required and if not then it won’t be successfully become the official language.
  3. This will also result in neglecting the weaker section of the society who won’t be able to speak English and their career opportunity will get affected.

Eventually we need to figure out to take a right decision about official language and keeping in mind of the consequences that could possibly be in long terms situations.

Why do Insectivorous plants exist?

If you find insectivorous plants strange and fascinating then this blog is for you.

What are insectivorous plants?

Insectivorous plants are those plants that derive some nutrients by trapping and consuming animals, mainly insects.

Categories of being insectivorous

There are essential two things that a plant has to do to be considered insectivorous:-

  1. Ability to take nutrients from dead prey:- a plant should have the ability to trap the prey and absorb nutrients from it. Those prey is usually insects or small vertebrates like, salamanders. It is not enough for the plant just to have defenses that can kill an animal that’s trying to snack on it. It also has to get it’s animal’s nutrients.
  2. At least have one adaption:- the plant need to have one adaption that actively lures in, catches, or digests it’s prey.

Doing at least one of these things and absorbing the nutrients for it’s benefit make it a insectivorous plant.

Plant traps

Over millions of years and across hundreds of species, plants have developed five different types of traps, most of them are from different times. And traps can be passive, if prey just fall into them and can’t escape, or active, if plant actually moves to catch its prey.

  1. Pitcher plant:- pitfall traps are the standard and passive trap used by plants like pitcher plants. Prey lands on the plants slippery surface and slides down into a pool of digestive juices.
  2. Sundews:- these are flypaper traps in which the prey become stuck in a sticky substance that is produced by the plant leaves. These traps can be passive as well as active. Sundews have sticky moving tentacles that react to contract with prey.
  3. Venus fly trap:- these are snap traps which are active, using rapid modified leave
  4. Bladderworts: they have bladder-suction. This creates little negative pressure vacuum inside their traps, which, when triggered by prey, pop open and suck the victim inside before snapping close.
  5. Lobster-pot trap:- they passive traps that force prey to move towards the plant’s digestive organ by having little inward pointing hairs that keep prey from moving backward out of the trap.
Venus fly trap
Lobster-pot trap
Bladderworts
Sundew
Pitcher plant

All of these unrelated plants have not only developed the same kinds of traps but it looks like they have also developed that same molecular mechanism for digesting their prey.

Reason of existence

It goes back to idea of convergent evolution. All these different insectivorous plants are responding to similar environmental pressure:-

  1. Found in open sunny places that have moist but nutrients – poor – acidic soil. Many of them live in bogs and fens.
  2. In these kind of habitat where nitrogen and phosphorus is not present in the soil, the plant tend to developed two kinds of leaves one for normal photosynthesis and one that are modified onto their particular type of trap.
  3. This results them to invest more in modified leaves than normal photosynthesis leaves as they have to live in a place with enough sunlight as well as to trap preys

Insectivorous plants can stop paying carnivorous temporally once they’re put in nutrients rich soil and if they don’t get enough sunlight and water.

Insectivorous plants are pretty rare and they are only found in certain kinds of habitats, they are just less likely to fossilize than other kinds of plants that are more widespread.

Countries that haven’t reported a Single case of Covid-19.

Most of the world has been struggling to contain COVID-19. The disease which was first reported in China, has become a global pandemic that many countries are still trying to get under control. But a hand full of nation have not reported a single case of COVID-19 to the World Health Organization (WHO).

Most are in southern and central area of Pacific ocean.

  1. Federated States of Micronesia
  2. The Marshall Islands
  3. Naru
  4. The Solomon Islands
  5. Vanuatu
  6. Tuvalu
  7. Kiribati
  8. Samoa
  9. Niue
  10. Tonga
  11. The Cook Islands
  12. Palau

These small islands are all technically Covid-19 free. Health experts these 12 countries escaped the pandemic because of a combination of remoteness, small number of people as their combined population adds up to just 1.6 million and because they closed borders when the Corona virus that causes Covid-19 began to spread widely. But just because they haven’t reported any Corona virus cases, does not mean these nations have entirely dodged the effect of the pandemic.

Tourism plays a major role in the economics of most of these countries. And as in many around the world, a lack of visitors has left hotels and restaurants struggling. The owner of the hotel says since March 2020 they have lost their whole business and have zero income.

Palau is one of the island nation feeling the economic pain of Covid-19. Streets that are normally bustling with visitors from abroad have been all but empty for months. With no guests, hotel in the country have also had to make serious cuts. A hotel owner says

No one in our hotel is making their full salary. Most people are 50% or below. Everybody is feeling the pain as thers is no economic opportunity left.

The Palau government recognized early on the economic toll of shutting it’s borders to foreigners. He says

Our capacity, our reality a situation here its that you’re better of with prevention than trying to do something about it later on. So, it became a question of economics or people’s lives, and the right thing to do for anybody in this world is to consider people’s lives.

The Government provided generous subsidies of up to US $10,000 for local people and a few hundred dollars for foreign workers affected by the halt in tourism. Not all Pacific countries rely on tourism as a main driver for their economies.

Countries like Marshall Islands and Federated States of Micronesia rely on fishing and farming and financial aid from the US. But with limited health care facilities and population spread across many islands, the nation’s priority has been keeping COVID-19 from their shores and educating citizens about thorough handwashing, social distancing and other precautionary measures.

Other than Island Nations

In addition to these tiny island nations, there are other countries that haven’t reported a single case of COVID-19 to the WHO: North Korea and Turkmenistan.

North Korea closed its borders in January 2020 and it’s leader Kim Jung-un has repeatedly said the disease is a “potential” threat. He even put the town of Kaesong, which borders South Korea, under lockdown in July 2020. But many observers are are sceptical about the country’s official statistics. They say North Korea’s weak healthcare system may not be able to confirm Corona virus infections, or that the ruling party may simply not be very transparent about whether there are any cases.

Health experts are also wary of Turkmenistan’s claim to be COVID-19 free. It is among the hardest countries in the world for foreigners to enter, and it also closes its borders early on in the pandemic. The authorities government in Turkmenistan also says there are no people in the country living with HIV or Aids, a claim most scientists say is just not plausible.

Back in Paula, where people are doing their best to ride out the economic toll of the pandemic, hotel owner have a bleak prediction about the future. They’re predicting how long will they continue to lose money before suspending more operations or total operations and just wait for the whole world to settle down? Because it’s a financial question arises, we’re willing to lose money, but how much money are we willing to lose?

So while border control, good hygiene and social distancing seem to have effectively kept the disease away from these places, there is no defence against the economic devastation caused by the global pandemic.

THINGS YOU CAN DO IN YOUR SPARE TIME

Time is a precious resource that we should not waste .  But we should also enjoy ourselves . Only working or studying , will not make our life any meaningful . When we have extra we can do something to enjoy it or to learn something different .

5 THINGS YOU CAN DO IN YOUR SPARE TIME 

1. PLAY GAMES – Playing games makes our mind to work creatively and helps to reduce stress. It is one of the best way of enjoying your time alone or with your friends .Many people find it exciting playing  different games on mobile or in there computers . It not only makes you relax it also makes your mind relax . You don’t have to think much. 


2. WATCH SERIES – Nowadays there are lots of new platform to watch series of different countries in different languages . It is fun to watch shows of different countries as it teaches you the culture of that country . 


3.LISTEN MUSIC – Listening music is one of the best way that you can do to spend your free time . There are lots of genres of music present nowadays .Also in many platforms or application you can listen music. Music reduces stress makes your body and mind free of unwanted things .


4. READING – Some people find book reading the most fascinating activity . Book reading increases your creativity , your knowledge and your thinking process . When we read a book , we imagine things and thus it makes your brain work out of the context . 


5. SLEEPING – Sleeping is loved by most , it’s not a joke . Sleeping reduces most of the problems that we don’t know . If you get less than 7hr sleep in a day , your mind will start shrinking and that’s a fact . Taking proper sleep and naps may increase your life span.  

IMPORTANCE

Why do we need trees ?Its easy we need trees for several reason – it gives us oxygen , stores carbon , stabilizes soil and protects from soil erosion .Trees hold an important value in our lives . They surround our houses and provides us shade . They increase the quality of our life . If a region doesn’t have sufficient amount of trees , that area doesn’t have enough rain . It causes the land to turn into a barren land . So the land losses its fertility with time. As stated by US department of agriculture “One acre of forests absorbs six tons of carbon di oxide and gives out four tons of oxygen .Trees control climate , they provide warmth and act as an shield during rain .

SUPPLIER 

Oxygen is the key factor which makes it possible for humans to survive on earth following by water and food. We humans take everything for granted . If we have anything in large amount we waste it , even if we don’t have it still we waste it .21% of air in our environment is oxygen 78% nitrogen and rest are other gases . 

DEFORESTATION 

Cutting down trees in a large amount and decreasing the forest area is known as Deforestation .What are the causes of deforestation ?

  • Increasing population – As the population is growing , demand for houses are increasing and forests are decreasing
  • Increase of agricultural land .
  • Construction – As number of buildings and factories are increasing , forest land is decreasing 

HELP

We need help of everyone to make sure that our earth remains green and healthy . Campaign for protection of trees should be started . If not us than who . Because we are the youth of our nation and we are its last hope .

CHOOSE HAPPINESS

 LIFE

“We cry , since the day we were born” and so we have heard this line a lots of times . 

But as we grow we choose whether we want to cry or whether we want to remain strong , because who cries is a weak person . This mentality makes a lot of person depressed . They try not to show there emotions and they die inside everyday . Were you born to die like these? . No one will agree with these line . We are born to live life enjoy life and to utilize its maximum potential . 

WHY PEOPLE GET SAD , DEPRESSED?

Many a time you see , youngsters they say I am sad because my girlfriend left me .We laugh on such situations but is it a point of laughing . It is not , someone is sad and you choose to laugh is not that great idea . They are going through a phase that we might not understand . We are humans we need to understand our friends , our families and there pain.

Photo by Tarikul Raana on Pexels.com

Choose happiness whenever you can . Teach others also how they can remain happy . Self satisfaction is the key .