Human heart
Latest about Heart & Circulation
Staying hydrated may reduce the risk of heart failure
By Rachael Rettner last updated
Drinking enough fluids is important for numerous bodily functions, including helping the heart pump blood more easily.
11 Surprising Facts About the Circulatory System
By Joseph Castro last updated
The human circulatory system was once a subject of great mystery, but now, modern science has revealed its inner workings. Here are 11 surprising facts about the human circulatory system.
The Circulatory System: An Amazing Circuit That Keeps Our Bodies Going
By Kim Ann Zimmermann last updated
The heart, lungs and about 60,000 miles of blood vessels work together to keep blood pumping through our bodies.
Human heart: Anatomy, function & facts
By Tanya Lewis, Scott Dutfield last updated
Reference The human heart is an organ that pumps blood throughout the body via the circulatory system.
Man dies from caffeine overdose after drinking equivalent of 200 cups of coffee
By Rachael Rettner last updated
Caffeine powders can be dangerous because they are much more potent than typical caffeine-containing beverages.
Veins and arteries: Facts about our blood vessels
By James Horton published
Reference Veins, arteries and capillaries make up a sophisticated circuit of blood vessels. This provides oxygen, removes waste, and maintains pressure so that our bodies can operate ceaselessly.
A woman would faint whenever she tried to stand. New implant lets her walk.
By Nicoletta Lanese published
The patient has a condition called multiple system atrophy.
Why do we have different blood types?
By Tyler Santora published
The disease malaria appears to have influenced blood type prevalence.
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