What is the normal percentage of water in the adult body?

The normal percentage of water in the adult body is typically around 50-60%. This figure reflects the fact that the human body is composed of a significant amount of water, which plays a crucial role in various physiological processes, including temperature regulation, joint lubrication, and nutrient transportation.

The range of 50-60% is generally accepted as normal for most adults, although individual variations can occur based on factors such as age, sex, and body composition. For example, infants have a higher percentage of water, while older adults may have lower percentages due to changes in body composition and hydration status.

Understanding this normal range is vital for assessing a person's hydration status and making clinical determinations in various healthcare contexts. It also contextualizes how water serves as a fundamental component of bodily functions and overall health.