(UNDATED) - The American Heart Association warns that for some people, shoveling snow can lead to a fatal heart attack.
The risk of a heart attack during snow shoveling increases for those who are middle-aged or older, people who lead an inactive lifestyle, or those who have been diagnosed with a heart condition.
One of the reasons heart attacks can occur during snow shoveling is the combination of colder temperatures and physical exertion.
Researchers found that within two minutes of shoveling heavy, wet snow, heart rate and blood pressure often exceeded that of maximum exercise testing.
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