eli5: How come men have do deal with balding on their heads, but not in their beards (or anywhere else for that matter)?

Question

I’ve seen so many old guys rocking beautiful beards yet their head is literally devoid of hair. How come balding doesn’t affect beards or the rest of their body?

In: Biology

Answer 1

DNA and dihydrotestosterone impact head hair loss, that DNA doesn’t impact facial hair. https://youtu.be/zxR5K8zqdEw