An automatic, wearable defibrillator approved for use in adults just got a new approved use: helping kids at risk of sudden cardiac arrest.

Chemotherapy can greatly improve cancer patients' chances of survival. But with this treatment comes a serious and equally life-threatening risk: heart failure.

The popular blood thinner warfarin is known for its potentially serious interactions with many drugs. And here may be another.

Obstructive sleep apnea (OSA) and high blood pressure can be a dangerous combination. But new evidence suggests that treating one condition may have the added benefit of treating the other.

When it comes to acid reflux, better care sometimes means less medication.

The little blue pill might have found another use outside the bedroom.

Bleeding can be a major concern for patients taking blood thinners. But what if the effects of these drugs could be safely reversed in an emergency situation?

A popular class of antibiotics used to treat common infections may carry some serious heart risks.

The American Heart Association (AHA) has identified seven simple steps people can take to reduce their risk of heart disease. But new evidence suggests that the AHA's "Life's Simple 7" may wind up benefiting much more than patients' hearts. {C}