What are the signs of heat exhaustion?

If you're sweating heavily, you could be developing heat exhaustion, but there are other less obvious signs. Learn what they are—and when to get immediate medical help—by watching the video.

Heat-related illness kills more than earthquakes, storms, and floods combined. Here’s how to steer clear of this summertime health hazard.

Whether you're riding your bike or taking a swim, here's how to stay safe during your summer workouts.

Researchers warn the trend toward hotter summers will continue with climate change. Learn about the health effects of excessive heat.

There are many reasons why you might become dehydrated. Learn how to maintain adequate fluid levels with these simple tips.

Keep your heart healthy when summer temperatures rise.