Southlake Health’s Regional Cardiac Program says it responded to double the usual number of heart attacks last week, and doctors say it's linked to shovelling snow.

Bev Gilbert was thinking about his heart as he and his wife dug their daughter's car out of its snow prison on a Toronto side ...

Health experts urge people to take it easy while shoveling snow, as heart attack deaths rise during the winter. A person clears snow from around their car during a snowstorm in Montreal ...

FOX 2 - We know that heart attacks spike after a snowstorm ... Franklin's analysis shows that heart rates during just 10 minutes of heavy snow shoveling exceed recommended exercise intensity limits.

The cold temperatures also increase the risk for heart attack because the arteries constrict and this increases blood pressure.