Casey, one thing you can do to calculate the amount of water you need to keep yourself hydrated is to take your weight and divide it by 2...that is the minimum number of ounces of water you need daily. So if you weighed 200, for instance, you would need 100 ounces of water daily.

Now, I don't drink my minimum amount because it would require me having a commode strapped to my rear end so I could T every minute or so, but I drink at least 4 16.9 oz. bottled waters a day. At least. That's nearly 70 ounces but not enough. Some days I drink more, some less. I will tell you this. I'm sharper on the days I drink what I should, and then some. Go figure!

JJ