Shoveling snow can be dangerous in extreme cold

WHITE PLAINS, N.Y., Feb. 5, 2026 — According to the American Heart Association, a relentless force changing the future of health for everyone everywhere, research shows that the exertion of shoveling snow may lead to an increased risk of a heart attack or sudden cardiac arrest.

The American Heart Association’s 2020 scientific statement notes snow shoveling among the physical activities that may place extra stress on the heart, especially among people who aren’t used to regular exercise. Numerous scientific research studies over the years have identified the dangers of shoveling snow for people with and without known heart disease.

"Research suggests that heavy snow shoveling can put significant stress on the heart. In frigid temperatures, that added strain can increase the risk of a heart-related event,” said Dr. Joshua Latzman, cardiologist at White Plains Hospital Physician Associates. “This can be especially dangerous for people who are out of shape or not used to strenuous activity.”

Dr. Latzman noted several ways snow shoveling affects heart health:

• The act of shoveling snow is mostly arm work, which is more taxing and demanding on the heart than leg work.
• While straining to lift heavy loads, such as a shovelful of snow, you often unconsciously hold your breath, which causes big increases in heart rate and blood pressure.
• Exposure to cold air causes constriction of blood vessels throughout the body, disproportionately raising blood pressure and simultaneously constricting the coronary arteries.

Dr. Latzman cautioned that the impact of snow removal is especially concerning for people who already have cardiovascular risks like a sedentary lifestyle or obesity, being a current or former smoker, having diabetes, high cholesterol or high blood pressure, as well as people who have had a heart attack or stroke.

“Anyone with these characteristics, including people who have undergone bypass surgery or coronary angioplasty, should not be shoveling snow,” he said. “Many heart-related events occur in people who are usually inactive. When someone who is sedentary suddenly takes on heavy shoveling after a storm, that unexpected strain can unfortunately lead to a serious emergency.”

Dr. Latzman recommends the following tips to reduce increased risk from snow shoveling:

• If you have known or suspected heart disease or risk factors for heart disease, get someone else to do your snow removal for you!
• If you must shovel the snow, start gradually and pace yourself. Always cover your mouth and nose, wear layered clothing, as well as a hat and gloves.
• Ideally, push or sweep the snow rather than lifting and throwing it, that action involves a little less exertion. Use a snow blower if available
• Be extra careful when the wind is blowing. Wind makes the temperature feel even colder than it is and will increase the effects of the cold on your body.

The American Heart Association urges everyone to learn the common signs of a heart attack and stroke. If you experience chest pain or pressure, lightheadedness or heart palpitations or irregular heart rhythms, stop the activity immediately. Call 9-1-1 if symptoms don’t subside shortly after you stop shoveling or snow blowing. If you see someone collapse while shoveling snow, call for help and start Hands-Only CPR if they are unresponsive with no pulse.

Learn more about cold weather and cardiovascular disease at heart.org.

Additional Resources:

• AHA health information: Cold Weather and Cardiovascular Disease
• AHA health information: How to Stay Active in Cold Weather
• AHA health information: Emergency Treatment of Cardiac Arrest
• Journal of the American Medical Association manuscript: Cardiac Demands of Heavy Snow Shoveling
• Follow us on X @HeartNews

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About the American Heart Association

The American Heart Association is a relentless force for a world of longer, healthier lives. Dedicated to ensuring equitable health in all communities, the organization has been a leading source of health information for more than one hundred years. Supported by more than 35 million volunteers globally, we fund groundbreaking research, advocate for the public’s health, and provide critical resources to save and improve lives affected by cardiovascular disease and stroke. By driving breakthroughs and implementing proven solutions in science, policy, and care, we work tirelessly to advance health and transform lives every day. Connect with us on heart.org, Facebook, Instagram, X or by calling 1-800-AHA-USA1.

For Media Inquiries:

Bong Arquiza: Bong.Arquiza@heart.org

For Public Inquiries: 1-800-AHA-USA1 (242-8721)

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