While some organs, like the brain and lungs, contain water content near or above 80%, the entire body as a whole does not average that high. An 80% water content would more accurately describe certain aquatic animals or specific tissues, not the composite makeup of the human body. For most healthy adults, the actual water composition is around 60%, though it can range from about 50–70% depending on age, gender, and body composition. Overestimating the water content might not be harmful, but it does misrepresent the science. Still, this answer highlights how critically water-saturated many body systems are. Maintaining hydration is essential for delivering nutrients, maintaining blood pressure, and supporting metabolic processes. But while individual parts of the body may reach 80% water, the body overall averages around 60% — making that the correct and widely accepted answer in medical science.