As Temperatures Cool, Heart Attacks Heat Up
A new British study finds that colder temperatures are followed by a spike in heart attacks. For every one-degree Celsius drop in temperature, relative risk of heart attacks increased by 2%; the higher incidence was seen for up to two weeks after the arrival of colder temperatures. Researchers analyzed data on 84,010 hospital admissions in 15 urban areas of England and Wales over four years, adjusting for a variety of other risk factors. People ages 75-84 and those with a history of coronary heart disease showed the strongest association between cold waves and heart attacks.