One of the most unrealistic things about Star Trek is that Starfleet isn't full of habitual, recreational drug users. Like I don't expect Picard to be blazing up in the captain's chair, but the Enterprise is perhaps the galaxy's highest concentration of nerds with virtually unlimited access to some of the most sophisticated chemical synthesizers in the federation. You can't possibly expect me to believe that a bunch of chem majors are just going to get off a twelve hour shift where they've been at the mercy of a gigantic space face or staring down a fleet of klingons or whatever and then be like "welp, guess I'll hit the gym!" No way dude. It's the 24th century and this fucker has like 12 degrees in astrochemistry. He's going straight back to his room to cook some shit in his closet and before his next shift he's going to have psychic powers or be able to see parallel timelines or some shit, and have a great time doing it.
