We are born with over 5 million hair follicles. No additional follicles are formed after birth, though the size of the follicles and hairs can change with time1.
Hair growth follows 3 distinct phases2 to give us our distinctive head of hair over.
To maintain our hair volume, more hair must be grown than shed2.
Asians usually have around 90,000 hair follicles, which is lesser than Caucasians who have 110,000-130,000 hair follicles3. Hence, the thickness of the hair is important for Asians.
Normal hair shed per day is average 30-70 hairs . If more than 100 hairs are consistently shed each day, you might be at risk of getting hair loss4.
1.Paus R. & Cotsarelis G. (1999). The biology of hair follicles. Massachusetts Medical Society. 341(7); 491–497.
2.Bergfeld W. & Mulinari-Brenner F. (2001). Shedding: how to manage a common cause of hair loss. Cleveland Clinic Journal of Medicine. 68(3); 256-261.
3.Vogt et al. (2008). Hair growth and disorders: Chapter 1 - Biology of the hair follicle. Springer-Verlag Berlin Heidelberg; Germany.
4.Patel et al. (2014). A clinical and investigative study of hair loss in adult female. Int J Res Med. 3 (4); 28-36.