Hair is simoply a protein filament that grows in the skull
I heard about that in school. Very interesting,.
it is one of the major charastics of a mammal
Really? I guess all mammals have it.
yes, the most interesting and common interests about hair is growth, hair types, and hair care.
My sister-in-law is obsessed with hair. She is always complaining her hair grows to slow.
, vary widely across different cultures and historical periods, but it is often used to indicate a person's personal beliefs or social position, such as their age, sex, or religion.
Overview.
The word "hair" usually refers to two distinct structures: 
1. the part beneath the skin, called the hair follicle, or, when pulled from the skin, the bulb. This organ is located in the dermis and maintains stem cells, which not only re-grow the hair after it falls
Hair
Hair is a protein filament that grows from follicles found in the dermis. Hair is one of the defining characteristics of mammals.
The human body, apart from areas of glabrous skin, is covered in follicles which produce thick terminal and fine vellus hair. Most common interest in hair is focused on hair growth, hair types, and hair care, but hair is also an important biomaterial primarily composed of protein, notably alpha-keratin.
Attitudes towards different forms of hair, such as hairstyles and hair removal