climbing stairs, runnin joggin n bikin can also help the heart
It gets your heart beating - and your heart needs exercise like all other muscles.
Your heart gets stronger when you move or exercise.
With exercise your resting heart rate should be reduced as your heart is more effecient at pumping blood and does not need to work as hard.
Cardio is the best for strenthning your heart. Anything that gets your heart beating faster is good. Go to the gym and try to get your heart beat fast. You will want to talk to your doctor before starting a new exercise plan though.
your heart gets controls by your nervous system
That is called aerobic exercise.
Electric shocks can be given in certain types of heart-attacks. When the heart has trouble beating it gets what is called fibrillation. The electric device that stops that is called a defibrillator because it shocks the heart into beating normally.
Exercise helps build heart muscle, or myocardium. A healthy heart is one that gets moderate exercise at least a few times a week.
Running
cause your heart gets so friggen excited it starts dancing in your chest
exercise can influence the respiratory system in a positive way because exercise gets blood pumping faster and makes the heart stronger. (the heart is a muscle by the way)
Because the heart beats faster during exercise to ensure that oxygen gets to the working muscles.