Why is it important to eat healthily and get exercise? Doing these things keeps your blood flowing well through your circulatory system, which is key to staying healthy. The job of your circulation is ...

There are three types of blood vessel: arteries, veins and capillaries. The heart is a muscular organ that pumps blood around your circulatory system. The circulatory system is the heart and all the ...

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 ...