If you're asking for scientifically proven statements: I don't know, I doubt anyone does. If you're asking for opinions: after having been a regular (sometimes

If you're asking for scientifically proven statements: I don't know, I doubt anyone does. If you're asking for opinions: after having been a regular (sometimes extreme) coffee drinker for more than 20 years (until about 3 months ago), I'd say no. Whatever disputed positive effects it might have (mildly stimulating, supposedly preventing depression, for me personally it seemed to prevent distraction mostly, but so does suitable music... ), we know for sure that it screws up your sleep and, in many cases, digestive system. I sleep better and am more productive now (I think) than before and on top of that I also got rid of an annoying routine (making coffee N times/day) and a resource I depended on (and might miss during zombie apocalypse, for example). But for people who smoke for example, it's probably negligible either way.