9 Unexpected Signs That Can Lead to Heart Attack

You live in an area with extreme temperatures

Studies show that both extreme cold and extreme heat can put people at risk for heart attacks. Using data from cardiac patients in the Worcester Heart Attack Study, scientists found that exposure to temperatures lower than 17º F in the two days prior to a heart attack increased patients’ risk by 36 percent.

On the other hand, British researchers found that once the temperature reaches 68º F, each increase of 1.8º F increased the risk of a heart attack by 2 percent over the next one to six hours. On the first day of a hot spell that risk jumps up to 6.5 percent per 1.8º F increase.