
What to do if you or someone you know might be having a heart attack
In the United States, someone suffers a heart attack every 40 seconds, according to the Centers for Disease Control and Prevention. And although far fewer people are dying from heart attacks than before, as temperatures drop, the cold can put additional strain on the heart and circulatory system. Blood vessels may constrict to prevent heat loss, which can increase blood pressure; cold can increase the viscosity (thickness) of blood, making it more prone to clotting; and once the snow starts, the effort of shoveling can put increased strain on the cardiovascular system.
Gn Health