What is the main difference between cardio and strength-training activities?


Cardio activities increase your physical strength, while strength-training activities work your heart and lungs.


Cardio activities work your heart and lungs, while strength-training activities strengthen your muscles.


Cardio activities require short bursts of energy, while strength-training activities strengthen your body over long durations.


Cardio activities improve your joints' range of motion, while strength-training activities work your heart and lungs.