I think the hormone would be testosterone, it would be subjectively deemed useless in times other than procreation. I would suggest that the important hormone is the growth hormone Thank you for your question.
hmmm
Follicle stimulating hormone
This hormone helps to regulate growth spurts, puberty hormone factors and assists in developing further for reproduction
I would rather not have this because hormones are really annoying as they mess up your head and they bug you. It is really necessary though but right now I'd rather not have it
