Not realy our bodies are like 90% water so we can get hydrated pritty fast. Clear unrin is a sign of hydration the more yellow the more dehydrated you are. Your body will tell you when you are properly hydrated its up to you while hunting to keep it that way. Make shure you have some electrolites ether salt packs or just a bottle of gatorade or somthing of that sort to drink midway through your hunt. You can over hydrate and flush all your electrolites out of your system and be in big trouble there too.

Feed yourslef, hydrate and stay heathey!