A pharmacy buyer at the University of Utah Hospital in Salt Lake City holds a tray of magnesium sulfate, a drug in short supply.

Locker rooms and clubhouses should be disinfected regularly with a solution such as bleach that's effective against the stubborn norovirus, researchers say.

One recent study found that people were able to burn up an extra 450 calories a day with one hour of moderate exercise. That can include walking briskly, biking or swimming.

There's a GPS tracker hidden inside this mild-mannered shoe.

A chest X-ray of a cigarette smoker's lungs.

Arielle Schacter, 17, holds her hearing aid in a New York subway station. Hearing loop technology funnels a transit worker's voice into her ear, blocking out the subway noise behind her. Ashley Milne-Tyte for NPR hide caption

What's in this vial changes from year to year, but the process of creating the flu vaccine remains pretty constant.