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When a blizzard hits, most people think of getting to work. But severe blizzards pose far greater risks than missing a meeting. In 2022, the "blizzard of the century" that swept across New York state from the Great Lakes claimed more than 60 lives in just a few days. While some deaths were due to exposure, many were actually caused by heart attacks that occurred while shoveling snow.
Estimating the exact number of people who die from cardiac arrest while shoveling is challenging. The surge in death rates during snowstorms often reflects delayed or inaccessible emergency medical services, turning otherwise treatable events into fatalities. According to data from Nationwide Children’s Hospital, roughly 100 Americans die each year from cardiac arrest while shoveling snow, and experts believe the true figure may be higher.
A 2025 study published in the Mayo Clinic Proceedings examined the groups most at risk for cardiac arrest or acute myocardial infarction during snow shoveling. Researchers found that older men are particularly vulnerable, and lead author Barry A. Franklin recommends that individuals over 55 avoid shoveling snow altogether.
Shoveling snow is an intense, full‑body workout. Studies show that even healthy young men experience spikes in blood pressure and heart rate that exceed those seen during treadmill running. The activity becomes especially dangerous when it involves hauling wet, heavy snow in a cold morning, a time when the body’s circadian rhythm heightens the risk of cardiac events.
Cold air causes arterial constriction, while the strenuous effort of shoveling raises blood pressure. Many people rush to clear driveways quickly, adding a breath‑holding, arm‑intensive strain that most are not accustomed to. The result is an abnormal surge in cardiovascular demand.
For older adults who lead sedentary lives, the sudden, heavy exertion can be jarring. Even fit individuals will notice a marked increase in blood pressure and heart rate. Recognizing this risk is crucial; for those who must clear snow, consider using a snow blower or pacing yourself with regular breaks.
