Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

The human heart and the miles of blood vessels that snake through the body are a wonder to behold. Made up of three independent components, the cardiovascular system functions best when these three ...

You remember how Dorothy, Toto, and the rest of the gang were trying to make their way to see the Wizard of Oz? That’s kind of how veins work in relation to your heart. Your heart is the wizard, and ...

What Is the Heart Conduction System? The heart conduction system is made up of cells, nodes, and signals that help your heart to beat. In fact, the cardiac conduction system is responsible for our ...

Cardiac muscle tissue is only found in your heart. It performs involuntary, coordinated contractions that allow your heart to pump blood through your circulatory system. Cardiac muscle tissue is one ...

The human heart is a finely-tuned instrument that serves the whole body. It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of center. The heart ...

A new study shows that Vitamin D3 could help restore damage to the cardiovascular system caused by diseases like hypertension and diabetes. A new study conducted by Ohio University scientists suggests ...

High stress in the short or long term can elevate your risk of a heart attack. Learn how the roles of stress hormones and ...