Get to know the functions of your heart, blood vessels, and blood itself and how they work together to maintain your health.

Good health depends on strong circulation. Blood flow carries oxygen and nutrients to every part of the body-including the heart, brain, skin, and muscles. When circulation is impaired, the body ...

The coronavirus isn't just a respiratory infection. Some of the most dangerous and least understood symptoms — from strokes to pulmonary embolisms to "COVID toes" — have been tied to excessive blood ...