(HealthDay News) -- A pedometer measures the amount of steps you take while walking or running. The size of a small portable phone, it attaches to a belt or waistband.

(HealthDay News) -- Antibiotic resistance occurs when a bacterium mutates and becomes immune to the effects of a specific antibiotic.

WEDNESDAY, Nov. 16 (HealthDay News) -- People who are diligent about keeping their heart healthy have a good chance of staving off cancer as well, researchers report.

WEDNESDAY, Nov. 16 (HealthDay News) -- Women and younger men account for a large number of heart attacks in the United States but are less likely than older men to receive preventive medications that lower heart attack risk, a new study indicates.

WEDNESDAY, Nov. 16 (HealthDay News) -- People with certain blood types may be at heightened risk for stroke, a new study suggests.

WEDNESDAY, Nov. 16 (HealthDay News) -- Elderly patients are less likely than middle-aged patients to receive pain medications in U.S. hospital emergency departments, even when they have severe pain.

WEDNESDAY, Nov. 16 (HealthDay News) -- A new study offers further evidence that a Mediterranean-style diet is good for your heart.

WEDNESDAY, Nov. 16 (HealthDay News) -- Broken heart syndrome -- a temporary heart condition brought on by extreme physical or emotional stress -- occurs overwhelmingly in women compared to men, a new study suggests.

WEDNESDAY, Nov. 16 (HealthDay News) -- Losing weight appears to help fight gum disease, a new study indicates.

WEDNESDAY, Nov. 16 (HealthDay News) -- One in five male breast cancer patients stops taking the drug tamoxifen early due to side effects caused by the medicine and may be at increased risk for cancer recurrence, new research suggests.

WEDNESDAY, Nov. 16 (HealthDay News) -- Scientists who identified a gene linked to separation anxiety say their finding could lead to more targeted treatments for anxiety disorders.

WEDNESDAY, Nov. 16 (HealthDay News) -- Balloons coated with a drug used to open blocked stents in heart arteries restore blood flow and also reduce bleeding in some high-risk patients, new research shows.

WEDNESDAY, Nov. 16 (HealthDay News) -- As thousands of smokers across the United States try to kick their bad habit as part of the Great American Smokeout on Thursday, experts agree that a two-pronged strategy is the best bet for success.

WEDNESDAY, Nov. 16 (HealthDay News) -- Most overweight and obese children are on a path to becoming obese adults at higher risk of type 2 diabetes, high blood pressure, high cholesterol and heart disease, a new study finds.

WEDNESDAY, Nov. 16 (HealthDay News) -- Overall outpatient use of antibiotics in the United States fell about 12 percent between 1999 and 2007, but alarmingly high use in the Southeast could speed the development of antibiotic-resistant bacteria, researchers warn.

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

WEDNESDAY, Nov. 16 (HealthDay News) -- One in 12 teens deliberately harm themselves, but 90 percent give up the behavior by the time they're young adults, a new study shows.

WEDNESDAY, Nov. 16 (HealthDay News) -- Jakafi (ruxolitinib) has been approved by the U.S. Food and Drug Administration as the first drug to treat myelofibrosis, a rare disease of the bone marrow, the agency said Wednesday.

WEDNESDAY, Nov. 16 (HealthDay News) -- A newer immune-suppressing drug called mycophenolate mofetil (CellCept) is better at controlling a serious kidney complication from lupus than another commonly used therapy, a new study suggests.