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Articles related to focusing on healthy aging, prevention, mobility, cognition, nutrition, independence, and caregiving support.

Oct 21, 2025

4 min

How does age affect the ECW ratio?

Research using bioelectrical impedance analysis reveals that the ratio of extracellular water to total body water, or ECW ratio, increases significantly with age. This shift in fluid balance is a natural part of the aging process, reflecting a decrease in water inside the body's cells relative to the water outside them. Understanding how does age affect the ECW ratio is crucial for monitoring changes in body composition and potential health concerns associated with aging.

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Oct 20, 2025

4 min

How Does Total Body Water Change with Age?

The percentage of total body water (TBW) in humans decreases significantly over the course of a lifetime, starting from approximately 75–78% in infants down to about 50–55% in older adults. This fundamental shift in body composition is a natural part of the aging process and directly explains **how does total body water change with age**.

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