Long term caffeine tolerance can be problematic. To combat this problem, every 2-4 months I stop taking caffeine for about 2 weeks (carefully planned for less hectic weeks). In my experience and that of at least one other colleague this method significantly lowers and possibly removes the caffeine tolerance. Two people does not make a study, but if you need to combat caffeine tolerance it may be worth a try.
Long term caffeine tolerance can be problematic. To combat this problem, every 2-4 months I stop taking caffeine for about 2 weeks (carefully planned for less hectic weeks). In my experience and that of at least one other colleague this method significantly lowers and possibly removes the caffeine tolerance. Two people does not make a study, but if you need to combat caffeine tolerance it may be worth a try.