Backstreet Boys star Brian Littrell opened up on his ongoing battle with his vocal cords in a resurfaced clip on social media ...

You've likely seen headlines about measles outbreaks across the United States and around the world — even after health experts declared the disease "eliminated" in the U.S. decades ago.  Truth is, ...

Medically reviewed by Susan Russell, MD The term "smoker's lung" refers to lung damage caused by smoking cigarettes. Over ...