Key takeaways
- Shoveling combines heavy lifting, cold air and a sudden heart-rate spike, a hard mix for the heart.
- The American Heart Association advises people with heart disease or risk factors to have someone else shovel.
- Wet snow can weigh several times more than fresh powder. A two-car driveway of it can total thousands of pounds.
- Stop and call 911 for chest pain or pressure, pain in the arm, jaw or back, or unusual shortness of breath.
On this page
Why is shoveling hard on the heart?
The American Heart Association lists snow shoveling among the activities that can put real stress on the heart, especially for people who are not used to regular exercise. Three things stack up at once:
- Sudden, heavy exertion. The AHA notes that about ten minutes of shoveling can push the heart rate close to its maximum. Most people go from the couch to that level with no warm-up.
- Cold air. Cold makes blood vessels constrict, which raises blood pressure while the heart is working hardest.
- Holding your breath. People tend to hold their breath when lifting a heavy load, which strains the heart further.
Who should not shovel at all?
The AHA's advice is direct: if you have known or suspected heart disease, or risk factors for it, get someone else to do your snow removal. Those risk factors include:
- A previous heart attack or stroke
- High blood pressure or high cholesterol
- Diabetes
- Smoking, now or in the past
- A mostly sedentary lifestyle, or obesity
If any of those describe you, talk to your doctor about what is safe before the season starts, not on the morning of the first storm.
How heavy is the snow, really?
Snow varies enormously in weight. Fresh, dry powder weighs roughly 3 to 5 pounds per cubic foot. Settled snow can weigh 12 to 19 pounds. Wet, heavy snow can pass 20 pounds per cubic foot. Here is what four inches on a typical 700-square-foot two-car driveway comes to:
| Snow type | Approx. weight per cubic foot | Four inches on 700 sq ft |
|---|---|---|
| Fresh, dry powder | 3–5 lb | about 700–1,200 lb |
| Settled snow | 12–19 lb | about 2,800–4,400 lb |
| Wet, heavy snow | 20+ lb | 4,600 lb or more |
Four inches over 700 square feet is about 233 cubic feet of snow. Weights are approximate and vary with temperature and moisture.
That last row is more than two tons, lifted a shovelful at a time. The ridge the road plow leaves at the end of the driveway is often the densest snow of all.
How to shovel more safely
If your doctor says shoveling is fine for you:
- Warm up for a few minutes first, like you would before exercise.
- Start early and go often. Clearing two inches twice beats clearing four inches once.
- Push instead of lifting whenever you can. A pusher-style shovel moves snow without raising it.
- Lift small loads with your legs, keep your back straight, and do not twist to throw. Turn your feet instead.
- Take frequent breaks, and keep breathing through the effort.
- Cover your mouth and nose, and dress in layers with a hat and gloves, as the AHA recommends.
Warning signs: stop immediately
Stop shoveling and call 911 if you notice:
- Chest discomfort, pressure, squeezing or pain
- Discomfort spreading to the arms, back, neck, jaw or stomach
- Shortness of breath that is unusual for you
- A cold sweat, nausea or lightheadedness
Do not "finish the driveway first." Every minute matters.
Are snowblowers safer?
A snowblower removes most of the lifting, which helps. Pushing a heavy machine through deep, wet snow is still real exertion, though, and snowblowers carry their own risk: hands near a clogged chute cause serious injuries every winter. Always shut the machine off and use a clearing tool, never your hand.
The simplest option
If you are in a higher-risk group, the safest shovel is the one someone else is holding. That can be family, a neighbor, a county program for seniors, or a snow removal service with a written trigger that comes without being called. Our guide to snow removal for seniors in Macomb County covers the options.
This guide is general information, not medical advice. Talk to your doctor about what is safe for you.
Sources
Written by the Macomb Lawn & Snow Solutions team in Macomb Township, Michigan. We plow and salt homes and businesses across all 26 Macomb County communities, November 15 to April 15. Published September 28, 2026. About us · How we research these guides · How our dispatch works