Return-to-Work Rate High After Knee Replacement, Study Finds

FRIDAY, March 22 (HealthDay News) -- Getting back to work after knee-replacement surgery is a big concern for people contemplating the procedure. Now, a new study shows that most people return to work after a total knee replacement -- even those with physically demanding jobs.

Physically Fit Docs More Likely to Prescribe Exercise, Study Finds

FRIDAY, March 22 (HealthDay News) -- If physicians think their own fitness is important, chances are they'll advise exercise for their patients too, a new study finds.

Health Tip: Help Stifle Allergies

(HealthDay News) -- A thorough cleaning of common living areas can help reduce allergens in the home, improving allergy symptoms.

Health Tip: Lower Cholesterol

(HealthDay News) -- Eating healthier can help lower your cholesterol. The Cleveland Clinic offers these suggestions:

Pneumonia May Lead to Serious Aftereffects for Seniors

FRIDAY, March 22 (HealthDay News) -- Seniors who are hospitalized for pneumonia are at high risk for long-term physical and mental problems that can impair their ability to care for themselves, according to a new study.

Antipsychotic Drug Use Rising for Kids on Medicaid, Study Finds

FRIDAY, March 22 (HealthDay News) -- Use of antipsychotic drugs among Medicaid-insured children increased sharply from 1997 to 2006, according to a new study.

Cigarette 'Relighting' on Rise in Still-Tight Economy

FRIDAY, March 22 (HealthDay News) -- Smokers are relighting used cigarette butts in an apparent response to tough economic times, according to a new study.

Reduced 'Fine-Tuning' of Brain May Hamper Face Recognition in Autism

FRIDAY, March 22 (HealthDay News) -- A malfunction in a specific group of brain cells may explain why some people with autism have difficulty recognizing faces, a small new study finds.

Sports Gamblers Wrongly Bet on Their Sense of Control: Study

FRIDAY, March 22 (HealthDay News) -- Many sports gamblers consider their extensive betting experience and insight into college basketball a slam-dunk for success during the three-week U.S. championship dubbed "March Madness." But that sense of control over their wagers is an illusion, according to a new study.

Antibiotic Linked to Heart Problems in COPD Patients

FRIDAY, March 22 (HealthDay News) -- A widely used antibiotic may increase the risk of heart problems in patients with lung conditions, according to a new study.

Ranting on Websites May Just Make You Angrier

FRIDAY, March 22 (HealthDay News) -- It's so tempting. You read something on a website about a hot-button issue that makes you mad and you've got to respond. Before you know it, you're verbally sparring with a stranger. But you may want to think twice before jumping into the fray.

Steady Rise in Heart Valve Infections Noted in U.S.

FRIDAY, March 22 (HealthDay News) -- Life-threatening infections of the heart valve are twice as common in the United States as previously thought and have increased steadily in the last 15 years, according to researchers.

Picky Eating in Youngsters Might Be Largely Caused by Genes

FRIDAY, March 22 (HealthDay News) -- If your young children are picky eaters, they may be able to blame it on their genes, according to a new study.

Even a Little Pot Use Ups College Dropout Risk

FRIDAY, March 22 (HealthDay News) -- College students who use marijuana and other illegal substances, even occasionally, are more likely to leave school than students who don't dabble in drugs, new research finds.

Health Highlights: March 22, 2013

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

Flu Season Continues to Wind Down

FRIDAY, March 22 (HealthDay News) -- The flu season, which got off to an early and virulent start, continues to wind down, U.S. health officials reported Friday.

FDA Proposes Tighter Regulation of Public Defibrillators

FRIDAY, March 22 (HealthDay News) -- To improve the quality of lifesaving devices called automated external defibrillators, the U.S. Food and Drug Administration proposed Friday that the seven manufacturers of these devices be required to get agency approval for their products.