Older adults with a strong sense of purpose showed measurably slower epigenetic ageing on several DNA-based biological clocks — an association equivalent to roughly two years of biological age between people with high and low purpose, though researchers cannot yet say purpose itself caused the difference.
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A stronger sense of purpose was associated with younger readings on four DNA methylation clocks in a U.S. sample of older adults. Across those clocks, the median model-based difference between people at the high and low ends of the purpose scale was about two years.
This is one study, not settled consensus. The analysis was cross-sectional, so it cannot show that purpose slowed aging. It also found no association on nine other clocks, and the four significant relationships disappeared after the
This is one study, not settled consensus. The analysis was cross-sectional, so it cannot show that purpose slowed aging. It also found no association on nine other clocks, and the four significant relationships disappeared after the
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