3 ms·
> Complete tolerance to caffeine's subjective effects is complete and takes at least 2 weeks at 400mg/day to develop. Caffeine's performance-enhancing effects r
by PainfullyNormal 4y ago
> Complete tolerance to caffeine's subjective effects is complete and takes at least 2 weeks at 400mg/day to develop. Caffeine's performance-enhancing effects remain for at least 20 days at 210mg/day. Tolerance to caffeine's effects on cerebral blood flow, blood pressure, and cortisol is incomplete. Tolerance takes 2 days to reverse at 100mg/day and up to 9+ days at 400mg+/day.
So... 2 weeks on, 2 weeks off?