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Biological age reflects how well your body functions relative to peers of the same chronological age. Estimated from lifestyle factors, fitness, and biomarkers. Epigenetic clocks provide more accurate estimates using DNA methylation.

Trin-for-trin guide

1. 1Common adjustments: +years for smoking, high BMI, inactivity; −years for exercise
2. 2Epigenetic Horvath clock uses DNA methylation patterns

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