Originally Posted by pauly_j
The sodium in your body which sends messages to everyting from your brain can disolve too much if over hydrated and I think that's what kills you. Drinking a lot while you're exercising shouldn't be taken into consideration as much because you'll mostly be replacing sweat.
I agree. It has a lot to do with what you are doing. In the gym I just stick with water since you don't sweat as much in the gym. I don't think I consume more then 40 to 50 fl oz of water in the gym.
On my bike during the summer or hiking in the summer you will sweat a lot and you will lose a lot of electrolytes and tons of water. This is when I can easily consume over 200fl oz on a three mile hike or two hours of riding.