what percentage of the human body is water

The human body is composed of about 60% water on average, but this percentage can vary from roughly 45% to 75% depending on factors such as age, sex, and body composition. For instance, the brain and heart are composed of 73% water, while the lungs are about 83% water. Babies have a higher percentage of water in their bodies, which decreases with age. Fatty tissue contains less water than muscle, so the percentage of water can vary with body type. The average adult is advised to consume at least eight 8 oz. glasses of water per day. It's important to maintain the right amount of body water for overall health and proper bodily function