With each heartbeat, blood courses through your body. Some traverse arteries from the lungs back to the heart, and some navigate through capillaries in the thinnest layers of your eyelid, almost ...

Pregnancy increases your blood volume to support your growing baby. But the real question is how your body manages this extra ...

Researchers at Nevada have discovered that tiny particles in the blood, called extracellular vesicles (EVs), are a major ...

A popular hypothesis for how the brain clears molecular waste, which may help explain why sleep feels refreshing, is a subject of debate. Encased in the skull, perched atop the spine, the brain has a ...