A new study says PET scans are one of the most effective tools in finding cancer.

AP - Older people who are depressed are much more likely to develop a dangerous type of internal body fat — the kind that can lead to diabetes and heart disease — than people who are not depressed, a disturbing new study found.

AP - Last warning: Asthma inhalers go "green" on Dec. 31, forcing patients still using the old-fashioned kind to make a pricey and even confusing switch. The medicine inside these rescue inhalers — the albuterol that quickly opens airways during an asthma attack — isn't changing. But the chemicals used to puff that drug into your lungs are.

World AIDS Day is being celebrated around the world.

Reuters - A simple office procedure helped relieve stubborn heel pain, offering a new way to treat plantar fasciitis, the most common cause of heel pain, Italian researchers said on Monday.