@ Anon55434- The effects of caffeine addiction are definitely taxing on the body. Like you, I find it hard to quit drinking caffeine until I have at least a week off from work. The last time I quit was during the summer break (I am a teacher) and I did not drink coffee for at least six months. I had never felt better, but the hiatus did not last forever. Now I am trying to wean myself off caffeine slowly, hoping that i can quit drinking coffee for good now.