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.
Some people refer to Cardiovascular exercise as aerobic exercise, some people even call it 'cardio' for short. All it amounts to is exercises that involve the large muscles like legs and help make your heart and lungs stronger. Cardiovascular exercise has lots of health benefits like lowering your blood pressure, and also it can burn lots of calories-for those of you who want to lose weight. Cardiovascular exercise is activity involving the large muscles, such as your legs. The word 'aerobic' refers to something that needs oxygen. During cardiovascular or aerobic exercise oxygen gets continuously delivered to your muscles.