Up to 400 milligrams of caffeine a day from regularly brewed coffee is safe for most adults and may offer some protection for your heart, according to a new Scientific Statement from the American Heart Association.

A new study shows that small improvements to sleep, physical activity, and diet can significantly reduce the risk of heart attack, stroke, and heart failure.

Depression not only makes epilepsy harder to treat but may also raise the risk of developing it, new research finds.

A new study finds just a couple of cigarettes per day increase the risk of heart failure and death.

People with insomnia who take melatonin for at least a year face a higher risk of heart failure over time, according to the preliminary results of a large new study.