Fast Evolution Affects Everyone, Everywhere. 1  Dec. 6, 2016 â Rapid evolution of other species happens all around us all the time -- and many of the most extreme examples are associated with human ...
Hair is simple in structure, but has important functions in social functioning. Hair is made of a tough protein called keratin. A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft.
Keratin, which is made up of amino acid, is a protein found in hair, skin and nails. Made by cells named keratinocytes it is found in the flat cells of your locks. Keratin keeps your hair strong and healthy. With decreasing level of keratin from hair cells, your locks get dry and more prone to breakage.