Researchers believe there's an upper limit to the temperature the human body can withstand — but many people could face ...

The main downside of drinking hot water is that there's a risk of burning the mouth and throat if it's too hot, the experts note. Avoid drinking water hotter than 150 degrees Fahrenheit.

The first time I saw a visible sign of how heat can affect flying was while boarding a flight in Louisiana: Fog was pouring from the vents inside the cabin. It was pretty alarming, but I eventually ...