The Hidden Heart Risks of Shoveling Snow

Written by Dr. Seth Meltzer

As cardiologists, we often see a spike in heart-related emergencies after major snowstorms, and it is not a coincidence. With a significant winter storm expected in Northern Virginia this weekend, it is important to understand why shoveling heavy snow can be dangerous for your heart and how to protect yourself.

Why is snow shoveling risky for your heart?

Shoveling snow is deceptively strenuous. For many people, it is far more intense exercise than their body is used to doing, especially if they are generally inactive or not accustomed to heavy physical labor. This sudden increase in exertion can place significant stress on the heart.

Shoveling also combines intense physical effort with cold weather, two factors that further increase cardiovascular strain. Cold temperatures cause blood vessels to constrict, which raises blood pressure and makes the heart work harder. Add heavy lifting, sudden bursts of effort, and holding your breath while shoveling, and the risk rises even more. This is especially true for wet, heavy snow, which can weigh much more than it looks.

For people with underlying heart disease or even undiagnosed risk factors, this sudden strain can trigger chest pain, irregular heart rhythms, or in severe cases, a heart attack.

Who is most at risk?

You may be at higher risk if you:

• Have a history of heart disease or a prior heart attack
• Have high blood pressure, high cholesterol, or diabetes
• Smoke or are physically inactive
• Are over age 45 for men or over age 55 for women

That said, heart attacks during snow shoveling can occur even in people who feel otherwise healthy.

Warning signs to never ignore

Stop immediately and seek medical help if you experience:

• Chest pressure, tightness, or pain
• Shortness of breath
• Dizziness or lightheadedness
• Pain radiating to the arms, neck, jaw, or back
• Nausea or cold sweats

These symptoms are not something to push through. It is important to recognize these symptoms early and contact 9-1-1. Emergency Medical Services may take longer to reach you if you need them in a storm.

How to shovel more safely or avoid it altogether

Our best advice is to avoid shoveling altogether if you have heart disease or multiple risk factors. Ask for help or consider a snow removal service.

If you do shovel:

• Take frequent breaks
• Push snow instead of lifting when possible
• Lift small amounts at a time
• Avoid holding your breath
• Stay warm and hydrated
• Stop immediately if you feel unwell