A 50-year-long study of twins finds exercise may not be as important for longevity as we t

Well SupportedVigorous exercise is associated with slower rates of epigenetic aging, while light to medium intensity exercise does not provide this benefit.

Well SupportedThe dose of exercise needed for most health benefits is small.

Partially SupportedBeyond a minimal amount of exercise, no significant longevity benefit was observed from higher levels of physical activity.

Partially SupportedHigh physical activity does not correlate with a younger epigenetic age, and its mortality benefits may be short-term and dependent on continuous maintenance.