I was always baffled by the final stages of Androgenetic Alopecia where only the horseshoe remains. The edge of the hair is always one continuous curve like it was drawn. wasteland on one side and a hair on the other.
If the number of 150k scalp hair follicles(blondes) is eventually halved by the time someone becomes Norwood 7, that leaves about 75K terminal hair producing scalp follicles. But that's only a 1.5% loss of the roughly 5 million total hairs on our bodies which DHT doesn't destroy. Why are just 1.5 % of them faulty hair follicles while the other 98.5% unaffected by DHT? In fact, we'd be missing a lot of body hair in the absence of DHT beginning at puberty.
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