swagling3
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The word cardio is associated with the heart. Therefore, the heart is a key part of the cardiovascular system. In two to three sentences, list two behaviors that strengthen your heart muscles and two behaviors that weaken your heart muscles.

Respuesta :

doing workouts like running and swimming tend to strengthen your heart muscles. smoking and not being active at all(?) can weaken your heart muscles.

hope this helps kek

One thing that strengthens your heart muscle is physical exercise. Another thing that helps is being on a good diet. Things that harm is eating Un-healthy and being just plain out lazy.

Hope that helps and feel free to ask me more questions :)


Brainliest??



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