In most cases, you are well aware of what important functions your body performs. However, there are many processes that you do not know about. They are also very important for the body, although they seem quite incredible.
9 facts about the human body that you probably didn’t know
1. You have the same amount of hair as a chimpanzee
The body of the average adult has the same amount of hair (known as down) as a chimpanzee. The difference is that, in the case of humans, the hair is much thinner than in chimpanzees. Also in our case, the hair has lost its protective function.
This situation with body hair has undoubtedly arisen due to evolution and the wearing of clothing to protect against the cold.
2. Why do we have goosebumps?
You could often have a feeling known as goosebumps. This is a pilomotor reflex, a reaction that would have occurred in humans in the past: the hairs on the body rise to protect it from cold and other dangers, such as wild animals.
Obviously, this feature is now unnecessary. Although we no longer have that much body hair, the skin continues to respond in the same way.
3. Constant blinking
A person spends five years of his life blinking. You may already know that this is very important for the eyes because blinking protects and cares for them.
Blinking moisturizes your eyes and gives them rest, but they can not always remain open. Blinking is also a protective impulse because you blink when something approaches your face.
The human body is a huge cluster of bacteria. In fact, according to the results of calculations, the number of bacteria is several times the number of cells (ratio somewhere between one and ten).
Of course, this does not mean that all bacteria in the body are harmful to your health. Among them are useful ones that help keep the body in good condition.
7. Take a nap is useful
Taking a nap for 20 minutes is good for your health. It improves concentration, mood, and productivity. However, longer sleep can have negative consequences. You may feel more tired and irritable.
8. A huge number of dead cells
Every day your body gets rid of a huge number of dead cells, mostly skin cells. That’s about two pounds of dead cells a year.
As you already know, the human body has a very large number of nerve endings that allow us to feel the environment. The most sensitive area on the lips and fingers, and the least sensitive in the middle of the back.
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