whats in our head that makes our hair grow

Question: whats in our head that makes our hair grow
- Keywords:
  hair,
  head
Asked by aayb279 to Cheryl, Christina, Daniel, George, Ivy on 25 Jan 2017.
- Cheryl Andisi answered on 25 Jan 2017:
  
  @aayb279,
  Hair is made by cells on the hair follicles which are found in the middle layer of the skin. These cells produce a protein called keratin that forms our hair. All mammal animals have hair covering most of their body surfaces.
  your genes will control how much hair grows where eg, hair on your arms vs that on your head. Also, hormones released at puberty will encourage the growth of pubic hair and facial hair in men but not in females.