When will all of my hairs leave me bald?
The average scalp loses 100 hairs per day and regrows 100 hairs per day to keep the number of hairs on the head constant. The cycle determines how many hairs are lost per day. 365 Days * 100 hairs *3 years is the average cycle in a young man gives you a cycling of 109,500 hairs over 3 years (which is the average hair count for a Caucasian). That means every hair on the head is regrown in 3 years. If the cycle is shorter and you still shed 150 hairs per day, the non-balding man might just have a shorter cycle, like a two year hair cycle.