If male pattern baldness is caused by testosterone, why are hairs on top of the head more affected by it and hairs like eyebrows, beard, inside ears etc, are affected less?
In: Biology
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From what I have learned…the hair on the head have a different testosterone receptor…which is absent in other parts of the body…so they fall off due to testosterone
From what I understand, it has to do with how sensitive the hair follicles on your head are to DHT (a metabolite of testosterone)
IIRC, it’s called the “androgen paradox.” The DHT causes hair loss on your head but actually causes facial hair and body hair to grow.
Is that why my hair is luscious and thick?
I think male pattern baldness is much more genetic then testosterone based. As I have a friend that has very low test levels (to the point they had to take pills to help boost their testosterone in their teens/early20s) but still started balding uptop by their late 20s.
Test levels are just a part of a bigger equation that is Male pattern baldness.
Is there an explanation for why the line on my head between the **will-never-grow-again** to **full-monk-band-of-hair** is SO distinct? It’s perfect, almost as if it has been hemmed into my scalp.
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It’s affected by DHT (Dihydrotestosterone) a androgen created from testosterone via an enzyme known as 5 – alpha – reductase.
The effect of DHT is as an agonist for different androgen receptors found in various parts of the body.
On the scalp the receptors activated by DHT signal for hair loss where as in the pubic,facial and body it signals for hair growth.
Factors such as receptor quantity, sensitivity and 5-a- reductase activity determine the overall outcome of balding and facial/body hair.
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