Imagine wearing a shirt that turns from deep blue to bright red when you’re working out, or a dress that shifts from black to silver as you move from air conditioning into summer heat. The fabric that ...

Philip Kreycik should have survived his run. In the summer of 2021, the 37-year-old ultra-marathon runner used an app to plot a roughly 8-mile loop through Pleasanton Ridge Regional Park in California ...

Summers are undoubtedly getting hotter. Extreme heat events are predicted to become longer, more intense and more frequent in the coming years—and rising temperatures are already taking a toll on the ...

The ability to sense heat protects the body from burns and injury. But how the body actually feels temperature has remained ...

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 ...