Your hair isn't just "there." It's in a constant state of flux. Understanding the cycle is the first step to saving the strands.
The Growth Phase. This is the active period. Your hair follicles are hard at work, pushing out strands at about 1cm per month. This phase can last 2 to 7 years. The longer the Anagen, the longer your hair grows.
The Transition Phase. A short, 10-day burst where the follicle shrinks and detaches from the blood supply. It's essentially "packing its bags" before the break.
The Resting Phase. For about 3 months, your hair just sits there while a new hair begins to grow underneath. About 10-15% of your hair is in this phase right now.
Wait, there's a fourth! Exogen is the specific moment the old hair sheds. Losing 50-100 hairs a day is perfectly normal—it's just the lab cleaning up the old stock to make room for the new inventory.