Said the amount of water your body needs per day for drinking water is balanced to excrete per day should be the same in normal conditions would have to drink 8 glasses of water per day (a glass each of 240 CC) if 2 water glasses as soon as they wake up in the morning. Urine and feces, the nervous system, the system is ready to work. Health is better. Drinking water may need to add more than 8-10 glasses per day. If you live in a hot climate where hard work or exercise. When you start the dehydration will feel the saliva dry. Feeling thirsty is a pointer that the body needs water, but in case of hard exercise. Feeling thirsty will return is pressed into temporary, which should provide adequate drinking water since before. You must not believe a feeling of thirst alone findings of American College of Sport Medicine (1996) I found that 37 percent of athletes in spite of the severe water shortage conditions, but there is no feeling of thirst. But we should not drink water before meals because they make lots of warm down. Food is not good.