Overview
- Researchers analyzed wrist‑tracker data from roughly 80,000–85,000 UK adults and linked a one‑week activity snapshot to about seven to eight years of health records.
- Women reached an estimated 30% lower coronary heart disease risk at about 250 minutes of weekly moderate activity, whereas men needed roughly 530 minutes for a similar reduction.
- Among participants without prior coronary heart disease, meeting 150 minutes per week was associated with a 22% risk reduction for women versus 17% for men.
- In those already diagnosed with coronary heart disease, 150 minutes per week correlated with far larger all‑cause mortality gains for women (about 70% lower risk) than for men (about 20%).
- The study reports a clear dose‑response for both sexes and, while observational and demographically limited, it has prompted calls to test mechanisms and consider sex‑specific recommendations.