The circulatory system is a group of organs that carry food, hormones, nutrients, oxygen and water to every cell in the body as well as remove waste products from every cell in the body.

The main parts in the circulatory system are;

1)       The heart, which pumps the blood throughout the body.

2)    The arteries which lead away from the heart to deliver food, hormones, nutrients, oxygen and water to every cell of the body.

3)      The capillaries which are very tiny vessels that does the exchanging of needed food, hormones, nutrients, oxygen, water and the waste products of the cell.

4)       The veins, which go to the liver and lungs and then back to the heart to start the process all over again.

5)       Red blood cells which are produced in the bone marrow with a life span of 120 days, carry oxygen to the cells and carbon dioxide from the cells of the body.

6)       White blood cells which are produced in the spleen and lymph nodes, destroy bacteria and viruses that invade the body.

7)      Blood platelets which are produced from bone cells in bone marrow, are non-living cells that aid the blood in clotting.

 Any exercise that speeds up the heart and opens up the arteries, capillaries and/or veins will strengthen the heart and its vessel(s).