I’ve always heard/been told to be careful while shoveling snow, that you’re more likely to have a heart attack. Why would I be more likely then as opposed to exerting myself during normal temperatures?
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One way heart attacks happen is when stuff in your blood vessels (plaque, clots) gets lodged in the most important tubes going into the heart. It’s kind of like stepping on a hose that’s turned on. The water stops coming out.
Well, in the heart’s case, it’s blood, and the heart needs that blood to keep coming in to pump it out.
When you’re shoveling snow, your body is pumping blood harder and faster both for warmth and to feed your muscles that are doing a lot of work. When the heart is pumping harder and faster, there’s a bigger chance of the tubes getting jammed, and then – bam – heart attack.
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