A popular hypothesis for how the brain clears molecular waste, which may help explain why sleep feels refreshing, is a ...

Your heart doesn’t have to work as hard. It beats with less pressure. Beta-blockers can also help open up blood vessels, which improves blood flow. Your doctor will decide which medication is ...

The signs of a dangerous blood clot can vary depending on its location. Some people may also not experience any symptoms.

The agency OK’d an artificial vessel to restore blood flow in patients, even though its own scientists flagged questionable ...

In sharp contrast to earlier studies, patients with severe triple-vessel heart disease fared equally well whether they ...

If you've ever cracked open eggs to find spots of blood or meat in it, you are probably wondering what those are. And, more ...

Nitric oxide acts as a vasodilator, which means it helps open blood vessels. As a result, many people take the precursor L-arginine for issues like erectile dysfunction and to improve heart health.