A new study shows that men who take Viagra to overcome erectile dysfunction are not at greater risk of having a heart attack in the short-term.

The finding is "consistent with the growing body of evidence" demonstrating the cardiovascular safety of Viagra, Dr. Murray A. Mittleman from Harvard Medical School in Boston and colleagues note in the American Journal of Cardiology

According to the federal government fluoride and toothpaste are the major factors in the decline of tooth decay among children in the United States.

A study by the Centers for Disease Control and Prevention found 42 percent of kids aged 6 to 19 had had a cavity or filling in their permanent teeth when examined between 1999 and 2002, a 15-percent decrease from the 1988-1994 period

A federal commission votes to close one of the top Army hospitals, as it begins its second day of deliberations on plans to restructure U.S. military bases.

Walter Reed Army Medical Center in Washington, DC has treated presidents and foreign leaders, as well as veterans and soldiers, including those returning from Iraq and Afghanistan

A test released Wednesday shows that the drug misoprostol is almost as effective as surgery for removing tissue that remains in the uterus after a failed pregnancy.

The drug, called Cytotec by manufacturers G.D. Searle and Pfizer Inc., has a success rate of around 85 percent, says Jun Zhang of the National Institute of Child Health and Human Development, the chief author of the study

A new study published in the Journal of Neuroscience suggests that the way people use their brains could actually lead to Alzheimer's disease.

"It may be the normal cognitive function of the brain that leads to Alzheimer's later in life. This was not a relationship we had even considered," said Randy Buckner, a Howard Hughes Medical Institute investigator at Washington University in St. Louis who led the study