Evolution is a process that takes a very long time, but actually it always happens anytime, anywhere. Just that, not every change is good. There are times when evolution fails, and the consequence could cause an entire species to go extinct.
Even for humans, despite thousands of years of development, evolution is still happening. The evidence is that people today are changing a lot compared to ourselves of the last century, and indeed not all changes are justified.
1. Skin no longer darkens because of sunlight, but freckles
Freckles is a condition of hyperpigmentation disorders in the skin. It occurs depending on the location of the person, but usually happens to Western whites when exposed to lots of sunlight, and disappears in the absence of UV exposure, and the skin can synthesize. get vitamin D.
But in recent years, freckles are becoming more common, regardless of your skin color or hair color. The reason comes from a gene hidden within each of us, which helped our ancestors survive in the summer with too much heat. Freckles appear to protect the skin from damage from the sun, although aesthetically … not so good.
2. Men increasingly fast … bald
Modern life is faster, faster, and it leads to more stress in life. As a result, male pattern baldness is coming earlier than before, even in the early twenties.
In addition, the trend of vegetarianism also contributes to this phenomenon. The reason is because many people simply give up eating meat, not learn how to have a more nutritious vegetarian meal. This leads to a deficiency of zinc and iron, thereby affecting the hair.
3. Gradually, natural childbirth will become impossible
A caesarean section is a birth control solution that is widely used today, due to the ability to reduce the risk in the case of the fetus is too large compared to the mother’s pelvis. However, the fact that more and more girls are being born this way also inadvertently causes more women to have a caesarean birth later.
According to scientists, this is a consequence of evolution, and gradually the story of natural birth may disappear in the future.
4. People are “lighter”
Do not rush, because the light is from bone. Having so much modern technology makes us less active, and this leads to weaker bones and less weight.
To avoid this phenomenon, the only way is to practice hard every day.
5. New blood types are emerging
The mutation process is enabling some new blood types to appear. Such as Rhnull blood type – only 43 people in this world own, with the ability to pass to all other blood types. But also because it is so rare, if it happens to be used by anyone, no one will use it, except in extreme cases.
6. The immune system is getting weaker
People are increasingly better at hygiene – from home to diet. This increases our average life expectancy, but inadvertently increases the number of people with allergies, asthma and immune system problems. The reason is that our immune system now has too little chance of coming into contact with bacteria and viruses, making it more sensitive than necessary.
In addition, overuse of drugs – especially antibiotics – makes people much more at risk.
7. More and more children are nearsighted
Children today have time to sit in front of the screen of electronic devices (phones, computers …). As a result, eye defects are more likely to appear, especially nearsightedness.
Source: BS, VT.co