Althea Fung

Though HIV infections among intravenous drug users is down, a new report from the Centers for Disease Control and Prevention finds HIV testing is down and needle-sharing remains high.

The longer a person has diabetes, the greater the risk of having a stroke, according to a new report from the Cleveland Clinic.

You “check in” on Facebook or FourSquare to let the world know when you’re at a concert, work, hanging out with friends or even going to bed. So why not when you’re having protected sex? The Planned Parenthood recently launched a web-based campaign where people can share details of their protected sexual experience.

Mars Inc., makers of Snickers and M&Ms, announced Thursday it will phase out the king-size version of its candy bars, the Chicago Tribune reports.

Fewer Americans got their health insurance through an employer in 2011 than in 2010, according to a new report from the Gallup Healthways Well-Being Index.

Older paternal and maternal age is associated with having a child with autism, according to a study from the University of Texas Health Science Center in Houston.

Consuming more than 2,000 calories per day significantly increases the risk of memory loss among people age 70 and older, according to a new report from the American Academy of Neurology.

Young people who attempt suicide may be doing it at a younger age, according to a recently released study.