Phases of Hair Growth

I thought putting a diagram up would help you guys better understand hair growth and natural shedding. We all go through these phases. Did you ever notice that your hair grows faster some years while other years it feels like it's not growing at all? Well, this diagram helps give you a visual on why.

The hair phases

The anagen is the growth phase; the catagen is the intermediate phase; and the telogen is the resting or shedding phase.

Hair growth cycle times
The anagen phase lasts about 3 years (1000 days according to P&G) but can last up to 10 years for some. The catagen phase can last 10 to 21 days. And the telogen phase lasts up to 3 months.