A small study that examined a procedure to produce three-dimensional maps of children's hearts could mark a step forward in repairing heart rhythm disorders in young patients.

Time is critical when a patient suffers a severe heart attack, prompting researchers to hunt for methods to speed up care. Training emergency medical technicians to administer electrocardiograms ( ECGs ) may improve patient survival.

Though sudden cardiac arrest in normal healthy athletes is rare, it still happens. What if one more test could help spot heart problems before they start?

A class of medicines called cardiac glycosides are used to treat heart failure and irregular heartbeats. Scientists say these same drugs could also serve as cancer vaccines.

Working as a police officer is stressful; so stressful, it turns out, that police officers may have a higher risk for a variety of physical and mental health problems.

Marijuana is often thought of as a drug that causes relatively little harm compared to other street drugs. But that may not be the case if you're carrying a little one to term.

A popular medication that can help with high blood pressure may also cause severe gastrointestinal problems such as nausea, vomiting, diarrhea, weight loss and electrolyte abnormalities. But why?

Helping stroke and dementia patients live longer may not be as complicated as it sounds. When doctors focus on the risk factors for stroke and dementia, fewer die or need expensive long-term care.

Various studies have linked lower blood pressure to increased longevity among adults. That may not hold true for frail and elderly patients. They may actually live longer with higher blood pressure.

In the past couple decades, China's economy has changed dramatically. At the same time, there have been similarly large changes in the dietary and exercise habits of the Chinese people, boosting diabetes and heart risks.