Originally Posted by SoxNation
I believe the male body is fully developed by 25.
Metabolism begins to slow down at 20 years of age.
Body ( bone growth) by about 21, brain and endocrine system by 23-25.
Metabolism does not start slowing by 20 though.
Prime is 20-30 for smaller faster fighters, big guys who are power punchers are more in the 25-35 range. When young fighters like Tyson get their ass kicked by a journeyman the Tyson fans like to say he was past his prime. Excuses are like arm pits, the real truth is he was prime and lost.