Study: People with clogged arteries often have a different type of bacteria in their spit.

Your gut microbe undergoes significant changes when you quit smoking—and that's probably a good thing, researchers say.

Henry Brown is defying the odds and working to beat a rare cancer with the help of his sidekick Jack-Jack and a whole team that loves him.

Millions of Americans are unable to do so and therefore less likely to seek help when trouble arises.

Jaelyn, a 4-year-old with spina bifida and limb differences, proves she’s a warrior—just like her military dad.

Television, video games and endless other distractions are stealing away our slumber.

New approach could help physicians accurately determine which patients are likely to develop life-threatening conditions.

A good, long snooze allows your brain to purge waste products such as beta-amyloid, a protein associated with dementia.

By 2040 more than 13 million people will have dementia—about 1 in 3 people over age 85.

Researchers say greener alternatives can reduce the user's carbon footprint, delivering as much benefit as recycling or cutting out meat.

Deaths from drug abuse and suicide—particularly among young people—are fueling a bleak life expectancy forecast.

Your gut instinct to enjoy that favorite cup of java may positively influence your overall health.