How about castration?

Although castration will lead to the loss of men's ability, recent studies have found that men can live longer after castration 15~20 years! Historians have found that the life span of some castrated eunuchs in ancient China can reach 136 years! But it's your business to cut it or not, because after cutting it, your voice will change and become like a girl, and you will have a chance to walk eight characters.