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.
Key Components. Those are just a few of the benefits that you will see with regular cardiovascular exercise. If you are just getting started, first focus on simply finding an activity that gets you moving and gets your heart rate up. Those are the two key components to what cardio is.