Tell me again about Red Bulling it before a game and how this is some how going to increase your concentration levels for an extended period of time. Everyone knows that caffeine provides a temporary boost for concentration. It does not provide a lasting boost to concentration. If you consume more as you suggest you will likely be overdosing, and you've already admitted overdosing is bad for concentration. Not to mention the dehydration effects on concentration. Having to pee or s*** if you're thehurla nd the tolls it will take on concentration. So again go do your own research, something that actually proves your point and get back to me.