Why are heart attacks more common in winter? A cardiologist explains


Cold weather is a challenge in itself, with travel disruptions, snow and ice making even the simplest tasks take twice as long. But winter also poses a risk to physical health for those who are at a higher risk of heart attack, angina or high blood pressure, because of the ways the body responds to the cold. 

A 2021 study in the journal Medicine (opens in new tab) found that overall, U.S. cardiac arrests peak during December and January, although the exact statistics is difficult to determine. Live Science spoke to experts to find out why. 

How does cold weather affect the heart?


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