Heart attack, stroke, and several other health risks can increase significantly on hot summer days. Nes/Getty Images * Temperatures are rising across the U.S. (and the globe) as summer and climate change take hold. * Research indicates that heat can raise the risk of all-course mortality. * Specifically, doctors and data point to certain health risks that increase along with temperatures, including migraine episodes, heart attacks, and strokes. While heat and summer go hand in hand, research and experts indicate that rising temperatures and health risks do, too. One 2022 study of more than 219 million U.S. adults ages 20 and older suggested a link between extreme heat and all-course mortality. The most significant risks were to older individuals. However, health experts say it’s critical for everyone to understand the health risks that can come with extreme heat. “It is easy in the summer to be distracted by lots of fun outdoor activities, but heat can imp...