Six hours before she collapsed from the heat in the South Florida tropical plant nursery where she works, Irma wasn’t feeling well. By 10 a.m., two hours into her shift weeding long rows of plants on ...

As our planet steadily gets warmer, our bodies will need to cope with the stresses of higher temperatures. A new study shows that continued exposure to heat waves can age the body as much as regular ...

Kevin Miller can get a person to the brink of heat stroke in 30 minutes. In a chamber with a temperature of around 100 degrees, he starts them out on the treadmill, switching off between three minutes ...