What percentage of total body weight is typically water in adults?

In adults, approximately 60% of total body weight is typically comprised of water. This percentage can vary based on several factors such as age, sex, and body composition. For instance, adult males generally have a higher percentage of body water than females because they usually have a higher proportion of lean muscle mass, which contains more water compared to fat tissue.

Understanding the importance of water in the body is also essential, as it plays critical roles in various physiological processes, including temperature regulation, nutrient transport, and waste elimination. Recognizing that about 60% of body weight is water helps individuals appreciate the significance of maintaining proper hydration levels for overall health and well-being.