In the light of global climate change, the relations between weather and health are of increasing interest. Studies have shown that outdoor temperature is linked to mortality risk in the short term, with both hot and cold days having an effect, but the effect of temperature on the risk of heart attacks (called myocardial infarctions) is unclear.
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Cold weather may increase the risk of a heart attack, according to new research from the UK. Each 1.8 degree Fahrenheit reduction in temperature on a single day was linked to about 200 additional heart attacks.
“Cold temperatures are known to raise blood pressure and also increase levels of certain proteins that could increase the risk for blood clots. Certain activities more commonly performed during cold weather, such as snow shoveling, might also contribute to the risk, the researchers say.”
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