A few years ago I just decided to give up caffeine entirely. It wasn't worth the impact on my sleep or the stop-everything-and-find-caffeine headaches I got. I

A few years ago I just decided to give up caffeine entirely. It wasn't worth the impact on my sleep or the stop-everything-and-find-caffeine headaches I got. I became uncomfortable with the fact that, in some small way, a substance exerted that much control over my life.