Just recently heart pacemakers went wireless. Now there is potential to take them even a step further. In the future they could be light-controlled.

An irregular heart beat could be caused by a wide range of factors -- from scarring after a heart attack to diabetes and high blood pressure. New research also suggests a genetic link.

After suffering a life-threatening brain hemorrhage, many patients are very traumatized and fear recurrent hemorrhages, though the actual risk is very low.

Clot busting drugs reduce stroke disability, yet patients often don't receive the treatment. It appears that graduating neurology residents are becoming more comfortable with using the drug.

Depression is common among the elderly with many electing to take antidepressants. The new generation of antidepressants may be overly risky for older patients.

Inherited bleeding and clotting disorders are not well understood. Scientists hope that a study to create human platelet cells, which could aid chemotherapy patients in need of platelet transfusions, will provide insight into platelet function.

When a diabetes patient's kidneys fail, that patient has to be put on dialysis. These patients may be at risk of having their heart suddenly stop. Now, researchers have found a way to spot who is most at risk.

Strokes can be tough to treat. Scientists have discovered a common genetic thread with plaques that can build up and lead to stroke. It could be a key piece of the puzzle in new treatments.

How much sugar in your diet is too much? There has always been a disagreement because there hasn't been definitive evidence to link high-sugar diets with heart disease, until now.

Current approaches for weight loss focus on controlling cravings, but resisting can be difficult when there’s a variety of available food. There may be a better way to lose weight.