Yeah, too much caffeine- like anything else- ain't good for ya. I recently cut back to around 4-5 cups per day from 7-8 and also no longer drink any caffeinated stuff after high noon (or at least try not to). I found that I do sleep better and my heart doesn't get out-of-sync so much. My caffeine tolerance is still quite high though.
It seems that it's also possible to build a tolerance to vitamin B12 as well- I can take 5000mcg (5mg) of B12 now and it appears to affect me only a small amount.
It may well be that tolerance build-up is the factor in reduced Red Bull effectiveness, JMO of course.
I do like the idea of either substance to help sustain alertness during a high run shot in 14.1-
It seems that it's also possible to build a tolerance to vitamin B12 as well- I can take 5000mcg (5mg) of B12 now and it appears to affect me only a small amount.
It may well be that tolerance build-up is the factor in reduced Red Bull effectiveness, JMO of course.
I do like the idea of either substance to help sustain alertness during a high run shot in 14.1-