Cardiovascular exercise like running or walking has a number of health benefits. But too much exercise may be unhealthy, especially after a heart attack.

A variety of medicines can treat irregular heart rhythm. But one of those medicines may increase the risk of death.

Getting the heart to beat normally is the goal of treatment for patients with atrial fibrillation. One particular treatment may decrease death in patients with atrial fibrillation by doing just that.

Air pollution has been linked to a wide range of health problems, but it's not always clear what's directly related to specific air pollution measures.

Exercise is a crucial part of a healthy lifestyle. But for some people, it appears there is such thing as too much exercise.

The prescription blood-thinners Pradaxa (dabigatran) and warfarin aim to reduce stroke and other cardiovascular disorders, but like most medications, they do carry some risks.

Among the most common medications taken for pain and inflammation are non-steroidal anti-inflammatory drugs, or NSAIDs. But could they have unintended consequences for the heart?

Pacemakers are lifesaving devices, but the wires that go through the recipient's veins sometimes cause complications.

For those with atrial fibrillation, warfarin helps reduce stroke and heart attack risk. While some have questioned the safety of its use with kidney patients, the medication appears to improve outcomes.

People with atrial fibrillation, a common heart rhythm disorder, face a high likelihood of stroke. To reduce the risk, the American Academy of Neurology recommends taking anticoagulants.