Taking Tests in a Heat Wave is Not So Hot

You know the feeling: It’s like a sauna outside. Sweat pours down your face and body. You drink gallons of water and still can’t get cool. You don’t want to exert much physical effort. The dog days of summer are here, but with a heightened intensity. Record-breaking heat in the U.S.—with North Texas seeing triple … Continue reading Taking Tests in a Heat Wave is Not So Hot

In Hot Water

This week, the I Spy Physiology blog answers a reader question: Why do we get dizzy when getting out of a hot tub? There may not be a better way to chase away the winter "blahs" than soaking in the hot tub or standing under a steaming shower. However, sometimes, after a lengthy soak or … Continue reading In Hot Water

Out in the Sun? Think about Your Kidneys!

When your body gets overheated, it responds in several ways as it races to cool you back down and prevent serious health problems. Heat stress is when your internal body temperature rises above the normal range of 97 to 99 degrees Fahrenheit. This triggers physiological responses geared toward maintaining normal body temperature. Our internal body … Continue reading Out in the Sun? Think about Your Kidneys!