Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. There's perhaps no element of the body that captures our imagination more than the heart. We link it ...

Well, the blood has to be kept moving around all the time because it's the body's delivery system. Every possible part of the body has to be supplied with oxygen and food and water, and the veins and ...

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 calf muscles play a vital role in blood circulation. They are often called the body's second heart. Strong calf muscles improve venous return and prevent blood pooling. Sedentary lifestyles weaken ...

The metabolic activity of any tissue is limited by its blood supply; the more active any organ, the more blood it needs and the more extensive its vascularization. The changes in metabolic activity ...

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Our bodies certainly are busy. All the different structures in us working together to achieve the ...