Long QT syndrome (LQTS) is a disorder of the heart's electrical activity. It can cause sudden, uncontrollable, dangerous arrhythmias (ah-RITH-me-ahs) in response to exercise or stress. Arrhythmias are problems with the rate or rhythm of the heartbeat. People who have LQTS also can have arrhythmias for no known reason. However, not everyone who has LQTS has dangerous heart rhythms. When they do occur, though, they can be fatal.

While sexually transmitted diseases were once thought of as a problem in the young population, diseases such as HIV are rising at alarming rates in the middle age and elderly. Second Opinion addresses the social, medical, physical and cultural factors that are contributing to this trend.

The Diabetes Prevention Program (DPP) was a major multicenter clinical research study aimed at discovering whether modest weight loss through dietary changes and increased physical activity or treatment with the oral diabetes drug metformin (Glucophage) could prevent or delay the onset of type 2 diabetes in study participants. The DPP showed that people at risk for developing diabetes can prevent or delay the onset of diabetes by losing a modest amount of weight through diet and exercise.