Human heart
Latest about Heart & Circulation

Man's Bloody Tears Were Caused by This Rare Condition
By Rachael Rettner published
It looks like Halloween costume: a man with bloody tears pouring down his face. But these tears are the real thing, the result of a rare condition.

Cholesterol Levels: High, Low, Good & Bad
By Laura Geggel published
HDL is “good” cholesterol; LDL is “bad” cholesterol. HDL helps lower LDL. Too much LDL can lead to heart disease and heart attacks.

A Woman Was Hit By a Wave at the Beach. It Ruptured One of Her Arteries.
By Rachael Rettner published
A woman's beach vacation took an unexpected turn when she was hit so hard in the neck by a wave that it ruptured one of her arteries.

Drinking More Water Really Does Ward Off UTIs
By Rachael Rettner published
Drinking an extra six glasses of water a day may reduce some women's risk of urinary tract infections (UTIs), according to a new study.

These People Drank Their Own Blood — for Science!
By Stephanie Pappas published
These volunteers quaffed blood for a good cause.

Blood Test Could Tell You What Time It Is In Your Body
By Yasemin Saplakoglu published
Tick tock, what says your body clock?

Heavy Metals May Pose Another Health Risk: Heart Disease
By Rachael Rettner published
A new study draws attention to an underappreciated risk of heavy metal exposure: heart disease.

If You Have Heart Disease, Too Much 'Good' Cholesterol May Be Harmful
By Tereza Pultarova published
When it comes to so-called good cholesterol, a new study suggests there could be truth to the phrase "too much of a good thing."
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