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 ...A hairstyle is the way hair is cut and styled.A haircut may be just practical, but a hairdo suggests professional styling. The fashioning of hair is an aspect of fashion, and cosmetics, especially for females.Practical, cultural, and popular considerations also influence hairstyles. People in many cultures cut their hair, rather than letting it grow naturally.
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