Testosterone injections in male rats makes them more aggressive. It can cause castrated red deer to grow antlers, and induce female rhesus monkeys to screech like its male counterparts. In studies done on humans, testosterone injections have increased and strengthened muscles....

Although many believe coffee increases their energy levels, researchers from Norway and the U.S. say there may be other benefits for drinking coffee. They say that drinking moderate amounts of coffee may protect against some ailments, including heart disease....

Two studies suggest ways to reduce the risk of age-related macular degeneration. A.M.D is the main cause of blindness in the elderly. It affects the macula, which is the part of the eye that allows one to see detail. This disease makes the vision less and less clear and eventually results in...

Indonesia has surpassed Vietnam this week as the country with the highest confirmed number of bird flu-related human deaths. The number of deaths from avian flu is now forty-three. Vietnamese authorities have reported no cases of bird flu in humans this year. Vietnam presently has forty-two...

AP - Monitoring of wild migratory birds to prevent a deadly bird flu virus is expanding to cover the entire nation and U.S. territories in the Pacific.

AP - Like many other New Orleanians nearly a year after Hurricane Katrina, John McCusker was experiencing the overwhelming stress of rebuilding his life.

HealthDay - WEDNESDAY, Aug. 9 (HealthDay News) -- A new study supports the use of cholesterol-lowering statin medications after stroke -- even for patients without a prior history of heart disease.

HealthDay - (HealthDay News) -- Circumcision is a common procedure performed on baby boys within a few days of birth. It involves removal of the penis foreskin, usually using a local anesthetic to minimize discomfort to your baby.

HealthDay - WEDNESDAY, Aug. 9 (HealthDay News) -- The Alzheimer's drug galantamine shows promise in guarding the brain against nerve agents and certain pesticides, U.S. researchers say.

HealthDay - WEDNESDAY, Aug. 9 (HealthDay News) -- An experimental gene-based drug is able to "trick" its way into prostate cancer cells and kill them, U.S. researchers report.

A new advertising campaign from Listerine says that a healthy mouth may make for a healthy body too. Dr. Madeline Monaco, director of oral care professional relations, and a member of Listerine's research and development team explains, "There's an association between the health of the mouth and...

Health experts warn that children can learn bad attitudes about dieting by watching their mothers, leading to an unhealthy obsession with body image. Parents who are fixated on counting every calorie can have a destructive influence on their kids....

The Bill and Melinda Gates Foundation announces a $500 million gift to the Global Fund to Fight AIDS, TB and Malaria. The gift is the largest private donation to the fund, which was founded nearly five years ago. The money will be given over a five year period....

Researchers find that single people who never marry have an increased risk of dying earlier than those who were divorced, separated or widowed. Out of all of these groups, those who remain married have the greatest chance of surviving longer....

AP - High doses of a cholesterol-lowering drug may help some stroke survivors avoid a second stroke and future heart problems, the first test of this approach found.

AP - Scientists have created a gene profiling test that may someday help reveal which people with early lung cancer are likely to suffer a relapse and would benefit most from chemotherapy.

AP - Mom's dieting habits can have a bad influence on the children. Some research indicates youngsters learn attitudes about dieting through observation. For some youngsters, that might mean an unhealthy fixation on body image, experts warn.

AP - The Bill & Melinda Gates Foundation took its support of AIDS-related research and care to a new level Wednesday, announcing a $500 million grant to an international fund that provides AIDS assistance in poor countries.

AP - Chubby cheeks and dimpled thighs have long been a mother's proof of a healthy, well-fed baby. But those roly-poly infants now may be a sign of something much different: America's growing problem with weight.

Researchers claim to have made a test that could most likely determine if a common form of lung cancer will reappear after surgery. With that knowledge, a doctor can adjust treatment accordingly by administering stronger drugs....