Most of America's Lower 48 states are about to swelter under an unusually large, strong and long-lasting heat dome.
As these hot temperatures linger, there's concern over recurring heat-related illnesses.
Here is what to watch out for if dehydration hits, as well as the best things to drink and eat to keep your body nourished.
Heat is the number one weather killer in the United States.
Triple-digit temps are back, and the National Weather Service has issued the first Heat Advisory of the year.
Before the summer sun comes in full force, employers are getting Heat Illness Prevention Training.