Hormones: As the pituitary and adrenal glands mature in the pre-teen and teen years, testosterone is produced by the testicles and many changes occur. Facial hair grows, the voice deepens, the penis elongates, the testicles grow and muscles get bigger. Testosterone causes the sex drive and sexual desire and stimulation. It is probably never higher than in the teen years.
Answered 6/30/2013
6.2k views
Testosterone!: It generally peaks at age 20 and then stabilizes or gradually decreases with age. Also immaturity with an emerging new feeling and inexperience with controlling it plays a big role.
Answered 4/2/2019
195 views
A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question