This does not surprise me. I regularly use 200-500mg caffeine in a day, and I did more while I was in college. (some) prescription stimulants and (some) stimu

This does not surprise me. I regularly use 200-500mg caffeine in a day, and I did more while I was in college. (some) prescription stimulants and (some) stimulants that are victims of prohibition would do the same job better and with less severe physical side effects, but I can't be bothered getting them. It's not that I respect the law; it's just more convenient to use the inferior-but-legal option.