I have seen plenty of middle aged chronics with vastly lowered libido and the resultant erectile issues. I have a friend who is a urologist here and he sees it as a common thread but to my knowledge, there is little data on it.
Try telling that to a hormone laden 20 year old stoner.
Course....drink is worse on that with age.
I don't do either....I want to be optimal for however long I got left. A woman's good lovin beats any dope I've ever taken....although opium tar ain't chopped liver granted.
You're right. Sure you don't want to write a book? *lol*