human body structure

The structure of the human body is suitable for jogging, but in fact not everyone likes this type of sport, even many people consider it a torture.

With looks like this, I'm sure no one dares to think about owning them.

The state of human beings is strange: Some people who eat snacks all day still don't feel fat, some people just breathe and gain weight ...

Surely you will be surprised to know that, although considered as the 'ruler of the earth' but from a scientific perspective, the human body is not really perfect.