Older adults who walk more steps each day tend to have higher levels of a key molecule in their muscles that's linked to youth and energy — especially if they hit over 13,000 steps, their levels look like those of young people. But if they take fewer than 7,500 steps, their levels are much lower.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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Healthy aging and muscle function are positively associated with NAD+ abundance in humans

Cross-Sectional Study

Human

2022 Mar

The study found that older adults who walk more steps each day tend to have higher levels of a key molecule (NAD+) in their muscles, similar to younger people, which supports the main idea of the claim.

Contradicting (0)

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No contradicting evidence found

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Source Study

Healthy aging and muscle function are positively associated with NAD+ abundance in humans

Score: 57

DOI: 10.1038/s43587-022-00174-3

Similar Assertions

Older people have lower levels of a key molecule in their muscles that helps keep cells healthy, especially if they're not active — but those who stay active, like endurance athletes, tend to keep their levels much higher.

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