11 extra minutes helps heart
A new sleep study reported that adding just 11 minutes of sleep nightly can significantly reduce heart attack risk — researchers called the cardiovascular benefit “surprisingly large.” (theguardian.com) Cardiologists also caution that inconsistent sleep schedules harm heart health, underscoring sleep hygiene as a simple recovery lever. (eatingwell.com)
The paper was led by Nicholas A. Koemel and published in the European Journal of Preventive Cardiology on 23 March 2026. (academic.oup.com (academic.oup.com)) The analysis used 53,242 UK Biobank participants (median age 63.0 years; 56.8% male) who wore wrist accelerometers for seven days while diet was scored with a 10‑item diet‑quality index. (medrxiv.org (medrxiv.org)) Across an average eight‑year follow‑up the study recorded 2,034 major adverse cardiovascular events, including 932 myocardial infarctions, 584 strokes and 518 cases of heart failure. (academic.oup.com (academic.oup.com)) Participants whose sleep, activity and diet reached the study’s “optimal” combination — about 8.0–9.4 hours’ sleep, 42–104 minutes/day of moderate‑to‑vigorous activity and higher diet‑quality scores — had a 57% lower risk of major cardiovascular events (HR 0.43, 95% CI 0.30–0.62) compared with the lowest tertile. (academic.oup.com (academic.oup.com)) The authors also report that very small, concurrent improvements in sleep, brief extra daily activity and modest diet gains were associated with roughly a 10% lower risk of major events, quantified using the study’s diet‑quality and wearable‑measured activity metrics. (academic.oup.com (academic.oup.com)) The team found no statistical synergy between the three behaviours (metrics such as RERI and synergy index were null), and they emphasise the analysis is observational — associations do not prove causation and residual confounding remains possible. (academic.oup.com (academic.oup.com); medrxiv.org (medrxiv.org)) Independent cardiology guidance has highlighted that the timing and regularity of sleep — not just duration — influence cardiovascular risk, and prior studies have linked irregular sleep patterns to higher markers of atherosclerosis and other heart‑disease risks. (newsroom.heart.org (newsroom.heart.org); nhlbi.nih.gov (nhlbi.nih.gov))
