Hair Growth Cycles continues ...

Terminology

Under normal circumstances hair growth in each hair follicle occurs in a cycle. There are three main phases of the hair growth cycle:

	anagen	the active growth phase
	catagen	transition phase
	telogen	the rest phase

Anagen is the longest phase with up to 90% of follicles on a normal human scalp in this active hair growth state at any given time.

Correspondingly there are up to 10% of hair follicles in the telogen or rest phase.   (That amounts to about 10 000 scalp hairs that are typically shed during this phase.)