To also report a null result: every now and then I try giving up caffeine, go maybe 1-4 weeks without it, and fail to notice much of a difference in anything. Then I go back to using it (around 100 − 400 mg per day), since it does make it somewhat nicer to wake up.
To also report a null result: every now and then I try giving up caffeine, go maybe 1-4 weeks without it, and fail to notice much of a difference in anything. Then I go back to using it (around 100 − 400 mg per day), since it does make it somewhat nicer to wake up.