National Institutes of Health

Study Suggests Genetic Link For Male HomosexualityA large study of gay brothers adds to evidence that genes influence men's chances of being homosexual, but the results aren't strong enough to prove it.
HIV-like Virus Suppressed In Monkey Experiment Doctors may one day be able to control a patient's HIV infection in a new way: injecting swarms of germ-fighting antibodies, two new studies suggest.