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 ...

The cardiovascular system is the bodyâ s main transport system, and its efficiency is essential for health and longevity. As it ages, it becomes less efficient, which has a negative impact on all ...

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 ...