Muscle injuries and dehydration can also trigger cramps. Dehydration is the excessive loss of fluids in the body. Low levels of any of the following minerals that contribute to healthy muscle function may also cause muscle cramps: calcium.
The heart is a part of the cardiovascular system in fact its the main part so if you have heart disease another way of saying this is you have cardiovascular disease.
The pump the drives the cardiovascular system is your heart. The hearts muscles, the among most powerful in your body, drives blood down your trunk, your legs, in and out of your arms, throughout every organ in your body.