I stopped for 6 months a few years ago when I was on a sabbatical, no problem. I still need a morning coffee to feel awake even on holiday though!
154 karma · joined March 10, 2014
I don't take any on weekends or on holiday, and sometimes I take 100mg if I'm going for a long car journey or something else that requires complete attention...
The effects are very subtle but noticeable: more alertness and concentration, and a more positive outlook on things. I found it's also pretty good at keeping depression at bay.