Why do some people have long human hair, and why do everyone have hair on their bodies?

Hormone levels are not the same.

Male secretions are abundant - laser hair removal.

Darwin's On the Origin of Species says that man evolved from monkeys.

The monkey has a lot of hair, and Sun Wukong grabs a handful of hair and blows to become a large group of small hairy monkeys.

Compared with the monkey, there is very little hair on the human body, in fact, the pores are still there, and the hair degenerates in most places and cannot be seen by the naked eye.

Human hair is related to genetics and hormones secreted by the body, the existence of hair is mainly for sweating, helping the body to dissipate heat and discharge toxins from the body, and some drugs can also enter the human body through sweat pores.

The hair on the body is collectively referred to as body hair. It is made up of layers of keratin proteins. Some organisms on the earth change their body hair due to the change of seasons.

Organisms have different body hairs, and even for the same species, the color of the body hair, and the growth rate of the body hair will not all be the same. Part of the creature, its body hair has the function of warmth, detection, camouflage.

Everyone has hair on their bodies, such as armpit hair, leg hair, and hair ...... there

In fact, this is a passage from a song called "Brother Mao Mao", the lyrics of this song are all related to Mao, and the whole song is explaining that everyone has Mao on their bodies, telling the importance of Mao Mao, and later it was spread to Douyin, and it became popular.

Everyone has Mao Mao on their bodies, I ask you to sing Mao Mao?

Hair on the human body is a legacy of human evolution. In the course of human evolution, hair has played an important role in maintaining body temperature, protecting**, and providing sensations. Here are some of the main reasons about the presence of human hair:

Protection**: Hair can provide some protection against dust, bacteria, and other harmful substances from entering**. For example, hair protects the head from sunlight and heat loss, and eyebrows and eyelashes protect against sweat, water droplets, or particles from entering the eyes.

Maintain body temperature: Human hair helps maintain body temperature balance. Hair can provide an insulating layer when it's cold, reducing body heat loss. When we feel cold, the body creates an insulating layer by making the hairs stand up (goosebumps) to maintain body temperature.

Perception of the environment: Hair can increase the presence of the outside world. For example, the fine hairs on the hair and body are able to sense slight changes in touch, wind, temperature, etc., helping us to react to the external environment.