i used to drink quite heavily , before i stopped almost completely {still like to have a few drinks on my birthday} i was drinking a fifth of usually rye whiskey per day. but it started causing issues with my stomach (bleeding ulcers) so drinking was replaced with drugs instead , seems to be better for me as i function a hell on a lot better with stimulants than whiskey , plus you can achieve an incredible amount of stuff if you only have to sleep once every 9 to 12 days , sometimes a bit more if i lose track of when the last time i slept was.