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Most college students understand how they can prevent the transmission of HIV but are less knowledgeable about HIV testing, according to a new University of Georgia study.

An analysis of randomized trials indicates that for critically ill adults, tight glucose control is not associated with a significantly reduced risk of death in the hospital, but is associated with an increased risk of hypoglycemia, calling into question the recommendation by many professional societies for tight glucose control for these patients.

A brain chemical that plays a role in long term memory also appears to be involved in regulating how much people eat and their likelihood of becoming obese, according to a National Institutes of Health study of a rare genetic condition.

Car crashes are the No. 1 killer of US teens. While states are passing laws to help teen drivers, little thought is being given to their habits as passengers. A new study uncovers a public health crisis and offers a solution to the problem.

Two new studies show that migraine headaches are very common among US military personnel, yet the condition is frequently underdiagnosed. The studies, appearing in Headache, the peer-reviewed journal of the American Headache Society, examine the incidence among soldiers within 10 days of returning from a 1-year combat tour in Iraq , as well as US Army officer trainees.

In  a feat of biological prestidigitation likely to turn the field of regenerative medicine on its head, researchers report having achieved what has long been a dream and ultimate goal of developmental biologists: directly turning one type of fully formed adult cell into another type of adult cell.

Latest research into dual-purpose contraceptives and non-hormonal contraception will be presented at a major scientific conference in Melbourne.

In a study that underscores the important role that individual genetic profiles will play in the development of new therapies for disease,scientists have made two important discoveries related to age-related macular degeneration, the leading cause of blindness in adults over the age of 60.

Researchers from Boston University's Slone Epidemiology Center have found that in a given week, over 10 million Americans are taking opioids, and more than 4 million are taking them regularly (at least five days per week, for at least four weeks). These findings appear in the Aug. 31 issue of the journal Pain.

A double murder investigation that has remained unsolved for almost a decade could be provided new impetus following a forensic breakthrough.