Think bad habits like nail biting and knuckle cracking are hard to break? Experts offer simple solutions.

  Cold and flu season is upon us, but is your child really sick? 4 tips for suspicious parents.

  Medicare?s Part D prescription drug plan is about to enter its second year. For some help navigating Part D?s enrollment period, we talked to Deene Beebe, spokesperson for the Medicare Rights Center, an advocacy group based in New York.

  Opioids, the body's chemicals that create "runner's high," may help save the heart from heart attack damage, a study shows.

  Nitrates and nitrites, found in foods including leafy greens, may cut heart damage in a heart attack, according to lab tests in mice.

  Compounds in magnolia bark extract fight bad breath, report researchers at the Wrigley Company.

  Scientists report reversing symptoms of myotonic dystrophy, adults' most common type of muscular dystrophy, in lab tests in mice.

  WebMD goes to the experts to find out what may cause this embarrassing yet common condition and what can be done to treat it.

  Health insurance for everyone should be the top health care priority for the next president, according to recommendations issued Thursday by a group of the nation's top health policy experts.

  A virulent new form of an old cold virus called Ad14 is spreading in the U.S. In 2006-2007, there were 10 deaths from outbreaks in 4 states.

  Menstrual blood contains adult stem cells that can develop into heart, lung, and other cells, researchers report.

  Findings from a newly published study support the idea that family conflict can influence the timing of puberty in girls.

  During sleep, the brain's medial prefrontal cortex replays the day's activity at fast speed to make memories, say University of Arizona experts.

  MBA students whose first or last initials are A or B tend to get better grades than those C or D initials, a new study shows.