As much as people enjoy the warm summer months, high temperatures can be hard on the human body. “As mammals, we live close to the thermal edge of life and death,” says Craig Heller, a physiologist ...

Editor’s Note (6/17/24): A record-setting heat wave will scorch the eastern half of the U.S. this week, with temperatures forecast to reach around 100 degrees Fahrenheit in some areas. In this 2023 ...