What percentage of the human body is made of water?

What percentage of the human body is made of water?

• A. 50%
• B. 60%
• C. 70%
• D. 80%

Answer: (B)

The human body is primarily composed of water, with an average percentage being around 60% for adults. This composition can vary based on factors such as age, sex, and body composition. In general, infants have a higher percentage of water, often around 75-78%, due to their higher proportion of lean body mass and lower fat mass. As people age, the water content tends to decrease due to an increase in fat mass and a decrease in lean body mass. Thus, stating that the body is made up of 60% water aligns with the standard physiological understanding of human body composition in adults. This percentage is crucial for various bodily functions, including regulating temperature, transporting nutrients, and removing waste.

The human body is primarily composed of water, with an average percentage being around 60% for adults. This composition can vary based on factors such as age, sex, and body composition.

In general, infants have a higher percentage of water, often around 75-78%, due to their higher proportion of lean body mass and lower fat mass. As people age, the water content tends to decrease due to an increase in fat mass and a decrease in lean body mass.

Thus, stating that the body is made up of 60% water aligns with the standard physiological understanding of human body composition in adults. This percentage is crucial for various bodily functions, including regulating temperature, transporting nutrients, and removing waste.