Health Tip: Do You Have a Heart Murmur?

(HealthDay News) -- A heart murmur is an extra or unusual sound made by the heart as it beats.

Health Tip: Treating a Nosebleed

(HealthDay News) -- Nosebleeds are common during childhood, and don't necessarily indicate danger, or that something is wrong.

Too Much or Too Little Activity Can Spur Knee Problems

MONDAY, Nov. 26 (HealthDay News) -- For middle-aged adults trying to protect their knee health, it may be best to avoid extreme ends of the exercise spectrum, such as too much high-impact exercise or too little physical activity, researchers have found.

Reading, Games May Help Aging Brains Stay Sharp

SUNDAY, Nov. 25 (HealthDay News) -- Reading, writing and playing cards and board games may be more than just fun pastimes, they may also help aging brains stay healthy, researchers say.

Injuries Skyrocket From Inflatable Bounce Houses: Study

MONDAY, Nov. 26 (HealthDay News) -- Inflatable bounce houses and moonwalks are springboards for childhood fun, but they're also the source of an alarming number of children's injuries, a new report warns.

Give Teens Access to Emergency Contraception, Pediatricians Say

MONDAY, Nov. 26 (HealthDay News) -- Doctors should let their teenage patients know about emergency contraception, such as Plan B, and write them a prescription for it if they are sexually active, according to a new policy statement from the American Academy of Pediatrics.

Alzheimer's May Progress Differently in Women, Men

MONDAY, Nov. 26 (HealthDay News) -- Alzheimer's disease may look and act differently in men and women, new research suggests.

Health Highlights: Nov. 26, 2012

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:

More New Drugs a Bad Fit With Grapefruit, Study Finds

MONDAY, Nov. 26 (HealthDay News) -- Because of new chemical formulations, prescription drugs that interact badly with grapefruit have more than doubled in number since 2008, yet many doctors seem unaware of this, Canadian researchers report.