Human heart

When it comes to "bad" cholesterol, lower is usually better. But a new study suggests it may be possible for cholesterol levels to be too low.

People with desk jobs may not need to feel so guilty about all those sedentary hours in an office chair.

A Nevada man is suing his doctor for allegedly leaving a nearly 5-foot wire in his body for more than a decade.

Scalpel,. Check. Sponge,. Check. Fire extinguisher...check?

Women undergoing fertility treatments may be at increased risk of a dangerous pregnancy condition called peripartum cardiomyopathy.

A drug for erectile dysfunction may also help treat heart failure, a preliminary study in animals suggests.

It has four chambers, blood vessels and it beats — sort of.

This unusual condition went undetected during the woman's lifetime.

A new study finds that drinking sugar-sweetened beverages is tied to an increased risk of early death.

Eggs are back in the news, with a new study concluding that regular consumption of the beloved breakfast food may increase the risk of heart disease after all.

Heart attack rates are increasing in what may seem like an unlikely group: adults in their 20s and 30s.

The brain decreases its chatter, the heart weakens and balloons up

The ability to do a lot of pushups may be a sign not only of strength, but also of good heart health, a new study suggests.

An unusual X-ray shows a cartoonish heart seemingly floating in a child's esophagus.

A new study may have uncovered why a poor night's sleep is bad for your heart and blood vessels.

So-called "ultraprocessed" foods — which are high in salt, sugar and other additives — are linked with an increased risk of early death, a new study finds.

A marijuana lollipop with a very high dose THC may have triggered a man's heart attack.

Extreme heat due to climate change might increase congenital heart defects.

A new study has found a link between e-cigarette use and an increased risk of stroke and heart attacks.