I wish there was more information about past-history drinking. When I was in my teens (about 40 years ago), I drank quite a lot. I completely stopped about 20

I wish there was more information about past-history drinking. When I was in my teens (about 40 years ago), I drank quite a lot. I completely stopped about 20 years ago. I feel much better, don't miss the hangovers, etc. I know that the ill effects of smoking are supposed to decrease after the smoking stops-- I hope it's true of drinking, too. Does anybody have any idea about this?