America's senior population will nearly double in the next few decades, according to a new report. And most countries worldwide are seeing dramatic gains in their senior populations. One reason? We're living longer—and that may bring new health challenges to bear.

A new study suggests that earplugs really do help prevent temporary hearing loss
after a concert. Rise above the din and get the details.

Job seekers who smoke may have a harder time getting hired, a new study suggests. And the habit may hurt their earning power too—to the tune of $10,600 a year.

One in 68 kids has autism spectrum disorder—but in more than half of those kids,
it's not being diagnosed early. Get the latest estimates, and find out
when your youngster should be screened.

The math may not be that simple, but a new study suggests that abuse before age 18 may increase a woman's risk of gestational diabetes. Learn more about the link.