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.

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??

answer; make a decision about which healthcare product to purchase///or review the decision about the healthcare product; good luck

because health skills are tools and strategies and also practical skills are also something you need to learn (like tools and strategies) and put it in reality.