Colder Temperatures Can Trigger Heart Attack
A 16-year study involving more than 280,000 patients suggests air temperature is a heart attack trigger. Findings of the study were recently presented at the European Society of Cardiology Congress.
Research has shown a seasonal variation in heart attack prevalence: Heart attacks are more common during the winter than in the summer months. The reasons behind this – whether it was due to weather or behavioral changes – have been unclear. To find out more about this link, researchers at Lund University in Sweden investigated heart attack risk and conditions such as air temperature, sunshine duration, precipitation, and air pressure.
Using information from the Swedish myocardial infarction registry (SWEDEHEART) gathered between 1998 and 2013 and meteorological data from hundreds of weather stations, researchers determined that the average number of heart attacks per day was significantly higher in colder temperatures compared to warmer weather.