Anybody got an idea why male voices go up again when in grandpa age?
>>7785531
Decrease is testosterone hormone production?
>>7785531
I'd say drop in testosterone production?
If you look closely, you can suspect the male and female curves are going to the same limit, which would be a "genderless" limit.
testosterone help you grow a longer pair of chords at puberty, it has nothing to do with your voice's pitch afterwards.
so?