People greatly enjoy feeling like they made a worthwhile sacrifice and giving up coffee is an easier achievement than running a half-marathon (though that one i

People greatly enjoy feeling like they made a worthwhile sacrifice and giving up coffee is an easier achievement than running a half-marathon (though that one is also a popular cause of returning wives and Powerball wins). Anyway, I'm like you, and actually once said "I have no caffeine sensitivity LIKE AT ALL", and then I cut down from "last coffee before dawn" to "around 1.5L" and the amount of psychological side effects I stopped having did change my life (no Powerball involved). At the time, of course, I would have called such side effects "that's just me". So, mileage varying. And some people are super sensitive to that somewhat racing adrenaline feeling, even though it is not actually dangerous.