Cross section o a hair
Strand of human hair at 200× magnification.
Hair is a protein filament that growes frae follicles foond in the dermis. Hair is ane of the definin chairactereestics o mammals. The human bouk, apairt frae auries o glabrous skin, is covered in follicles that produce thick terminal an fine vellus hair. Maist common interest in hair is focused on hair growthe, hair teeps an hair care, but hair is an aa an important biomaterial primarily compomed o protein, notably alpha-keratin.
Attitudes taewart different hair, sic as hairstyles an hair remuival, vary widely athort different culturs an historical periods, but it is eften uised tae indicate a person's personal beliefs or social poseetion, sic as their age, sex, or releegion.