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.
1 Cardiovascular, or aerobic, exercise can help lower your blood pressure and make your heart stronger. 2  Examples include walking, jogging, jumping rope, bicycling (stationary or outdoor), cross-country skiing, skating, rowing, high-or low-impact aerobics, swimming, and water aerobics.