Why should I drink eight to nine cups of water a day?
-
Dr. Ronald Tamler of The Mount Sinai Medical Center answered:The average urine output for adults is about 1.5 liters (6.3 cups) a day. You lose close to an additional liter (about four cups) of water a day through breathing, sweating and bowel movements. Water drinkers average 75 to 90 fewer calories at each meal, which greatly aids in weight loss and weight control.
The average urine output for adults is about 1.5 liters (6.3 cups) a day. You lose close to an additional liter (about four cups) of water a day through breathing, sweating and bowel movements. Water drinkers average 75 to 90 fewer calories at each... More

