None youre only allowed to give information they say youre allowed to
I believe from what I learned, mouth to mouth has been proven less effective. Hands only CPR should be the only one put into practice.
Answer:
Cardiorespiratory fitness refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity. ... Basically, it's how well your heart and lungs can work together to pump blood, oxygen, and nutrients to exercising muscles.
Explanation:
really hope this helps!!
It would make people die with heart disease im pretty sure