Editors of a top medical journal call Meridia "another flawed diet pill" and question whether it should stay on the market as a study shows it raises the risk of heart attack and stroke in people with heart problems.

One of the country's leading medical journals is looking for a new editor.

While staying mentally active in old age has been linked to a delayed onset of dementia, seniors who engage in such brain "exercise" may actually have a faster rate of decline once Alzheimer's is diagnosed, researchers reported Wedne...

A popular drug that is used by millions of diabetics around the world significantly decreases tobacco-induced lung tumors in mice, a study published Wednesday found.

A less active thyroid may mean more years added to your life, hints a new Dutch study.

WEDNESDAY, Sept. 1 (HealthDay News) -- Secondhand smoke appears to trigger a complex inflammatory response in the lungs, a study in rats reveals.

WEDNESDAY, Sept. 1 (HealthDay News) -- Human immune systems are much more alike than previously believed, a finding that may lead to new ways to detect, diagnose and treat cancer and autoimmune diseases, say U.S. researchers.

Cell therapy companies in China and Germany who were criticized by British experts warning of the dangers of "stem cell tourism" defended themselves on Wednesday, saying their safety records were good.

Women scheduled for gynecologic surgery are very likely to undergo unnecessary tests before their operation, new research shows.

Scientists studying the autoimmmune disease lupus have found that blood platelets are key in its development and say their findings in the lab suggest blood-thinning drugs may offer a new way to treat patients.

An altered version of the cancer drug Gleevec could form the basis of a new class of drugs that block the development of brain-damaging plaques in Alzheimer's disease, U.S. researchers said on Wednesday.

Women should only have a cesarean delivery if there is a medical reason for it, and doctors should not switch a vaginal birth to a cesarean section sooner than recommended, conclude the authors of a new study.

An antibiotic that gets its microbe-fighting power from insect proteins was effective at attacking a common infection that afflicts blast victims in war zones, U.S. researchers said on Wednesday.

India has halved the number of women who die during childbirth, but experts warned on Wednesday a lack of facilities is likely to stop the country from meeting global goals for improving maternal health before 2015.

Adding to evidence that men with early prostate cancer can safely put off surgery, a new study finds that patients who delayed surgery by over a year had similar outcomes as those who opted for immediate treatment.

Moscow banned night-time sales of vodka and other spirits on Wednesday, part of a nationwide drive to curb crime and disease linked with Russia's national drink.

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

(HealthDay News) -- Here are the latest clinical trials, courtesy of ClinicalConnection.com:

WEDNESDAY, Sept. 1 (HealthDay News) -- Many patients experience more physical and emotional problems a year after elective surgery than they did before their operation, researchers find.

WEDNESDAY, Sept. 1 (HealthDay News) -- Shortchanging yourself on sleep could shave years off a man's life.