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What are the benefits of drinking water? The human body contains about 60% water. Your body depends on this essential nutrient. In fact, you couldn't live more than a few days without water. Below are some of the many benefits of water. Water helps: adjust your temperature keep your mouth clean Lubricate joints and protect sensitive tissue Eliminate harmful wastes through urine, sweat and feces. It carries nutrients to the organs through the blood. Do I really need to drink 2 liters of water a day? No, there is no evidence to support that you should be drinking eight glasses, or 2 liters, of water a day. Research has found that most people get enough water from the foods and drinks they consume on a daily basis. All drinks, including tea, coffee, juices and soft drinks, contain water. For most people, drinking these beverages along with plain water makes up 70-80% of their total fluid intake. The other 20-30% of most people's total fluid intake comes from food. However, it is b...