I do have doubts about whether caffeine every day long-term is effective. We seem to develop tolerance, and at least personally, I eventually need it in the mo

I do have doubts about whether caffeine every day long-term is effective. We seem to develop tolerance, and at least personally, I eventually need it in the morning just to get back to baseline. But caffeine as a situational stimulant has been my practice since early adulthood. Rarely it is daily use for short stretches when very busy. But usually just one or two cups of coffee a week, in the early afternoon when I'm feeling sluggish. It's a drug and like any other it has its uses and its downsides :)