TUESDAY, Aug. 26, 2025 (HealthDay News) — Years of repeated exposure to heatwaves may accelerate aging, according to a study published online Aug. 25 in Nature Climate Change.

Siyi Chen, from the University of Hong Kong, and colleagues examined associations between long-term exposure to heatwaves and biological age acceleration. Biological age acceleration was determined by subtracting chronological age from biological age. The analysis included data from 24,922 adults in a longitudinal cohort in Taiwan (2008 to 2022). Linear mixed models were used to investigate the association between heatwaves and biological age acceleration.

The researchers found that each interquartile range increase in the cumulative exposure to heatwaves was associated with a 0.023- to 0.031-year increase in biolo

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