In my younger days I would drink coffee all day. An army thing. Then in the 90's I got into the espresso fad. Then I went to no doze pills, I would take one when I woke up then a couple more during the day. I cut down when I quit alcohol, which is normal. Then I just quit it. If you notice most heavy drinkers always chug caffeine as well. Never was a big coke drinker and I never drank caffeine on rides. That would just make me thirsty.