Debunked Myths

The '70% water' statistic is an oversimplified average that hides a dynamic biological reality. Our water percentage constantly changes based on age, gender, and body composition. Newborns are most aqueous at 75-78% water, explaining their soft features and hydration needs.

This percentage declines with age—adult men average 60%, women 55% (due to typically higher body fat, which is only 10% water). Elderly adults may drop to 50% from natural muscle loss and reduced fluid retention. The memorable '70%' figure likely originated as a rounded number for standard reference models.

The truth reveals our bodies as changing fluid landscapes where composition tells our life story. Hydration isn't a fixed percentage but a reflection of our growth, gender differences, and aging process. Understanding this variability helps explain different hydration needs across life stages.