Human Hair-Useless Tissues of Body ?

Eyes could provide the information where the fruit is; feet could bring us to arrive under trees; hands could pick fruit from trees; Even the nail could be the tools of peeling and cut, eyelashes and eyebrows could protect eyes from sweat. All the tissues have their functions, but then what’s the use of human hair?

What’s human hair?

Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals. It’s a hair’s definition on Wikipedia.

Hair is one of the Characteristics of mammals, the second part of the definition like satiric: we try our best to work for life, then the body consume much energy to growing hair, it just could be the evidence to prove that we are normal human, moreover, there are numbers of great men and women lost hair when they were providing unique contributions for the whole human.

The joke is over, hair is a protein filament that grows from follicles found in the dermis, the 100% human hair is the protein fiber, and all the organizations test hair basic on the theory.

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What’s the use of human hair?

Protection function:

Thousands of hairs wrap around the head, forming the head’s defense line like cheap lace wigs. Thick, healthy, clean hair can protect the head from the damage caused by external machinery and bacteria, playing an important role in fitness.

Notification function:

The hair’s sense is sensitive like transparent lace frontal with bundles. When the external environment creates affection to the human body, no matter the blowing wind and drench or high-temperature basking, what feel above all is hair, then the information is sent out and transmitted to the Brain center, finally, the human will take a variety of protective measures thereby.

Adjustment function:

Hair acts as a regulator of body temperature. In winter, when the wind blows hard and blood vessels contract, hair keeps the head warm; In summer, the sun is scorching, blood vessels dilate, hair can give off heat outside again. Therefore, the hair has both functions that heat preservation and dissipation.

To sum up, the human hair not only has physiological uses but has more profound significance.

 

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