(HealthDay News) -- Although shoveling snow can count as moderate-to-heavy physical activity, studies show it can cause a quick rise in heart rate and blood pressure, increasing the risk of heart attack in some people.
Here's a list of people who should limit or avoid shoveling snow, courtesy of North Dakota State University:
If you must shovel snow, dress in warm layers, avoid caffeine before beginning, stretch your muscles beforehand, and begin slowly. Shovelers should always pace themselves and listen to their bodies to know when to stop.