Originally Posted by wakelagger

Check your piss.
If your urine is clear or yellow tinged, it means your body is dumping a lot of the water you are drinking which dillutes the other 'stuff' in the urine, making it clearer. If its more yellow, or dark yellow, it means you aren't getting enough water, so there is a higher concentration of the other 'stuff'. I used this trick a lot in soccer tournaments to prevent dehydration. If you're thirsty, you are apparently alot closer to dehydration that you think. Check with your doctor about your situation though.