Here are a few of the beneficial functions of water in your daily diet. Maintains normal body temperature. Take note that drinking cokes, coffee, beer, or juice does not take the place of water. In fact, alcohol and caffeine increase your need for water. The average adult human body is approximately 60 percent water found in muscle, blood, brain, bone, etc.
People can live for weeks without food.
An individual can survive only three days without water. A 5 percent loss of body water causes dehydration and a 15 to 20 percent loss of body water may be fatal. A loss of 7 pounds for a 150 lb. Water loss, not salt or sodium loss, impairs an athlete's performance. Caffeine and alcohol have a dehydrating effect and decrease body fluids.