Exercise to survive a heart attack . . . and other storiesBMJ 2021; 372 doi: https://doi.org/10.1136/bmj.n470 (Published 25 February 2021) Cite this as: BMJ 2021;372:n470
Death following myocardial infarction
Combining data from 10 European longitudinal studies identified nearly 30 000 people who experienced a heart attack. Around 5000 (18%) died within 28 days and, of these, 3000 (62%) died instantly. Risk of sudden death was influenced by past levels of physical activity. People who, at the time of recruitment, reported moderate or high levels of leisure time exercise reduced their risk by 33% and 45%, respectively (Eur J Prevent Cardiol doi:10.1093/eurjpc/zwaa146).
Fish oil supplements
A few years ago, a Cochrane review reckoned that omega-3 fish oils had no worthwhile cardiovascular protective effect (Cochrane Database Syst Rev doi:10.1002/14651858.CD003177.pub3/full …