I used to smoke so fucking much up untill last year. I had like a routine where I would smoke in the morning before work, on my lunch break, after work was over, and so on in the evening whenever. Now I only smoke at night, after everything I planned on doing for the day is over. Like pyrus said, everyone is different in the way they adjust to changes with canabbis. I had no problem quitting for 2 1/2 weeks when I went to Ireland last year, but I know some people who will lose sleep, appetite, etc. when getting off a smoking routine. Also, as far as health issues go, I normally use a vaporizer for my daily marijuana consumption, so that pretty effectively negates adverse health effects.