The answer is respiratory and circulatory systems.
Answer:
How could i solve the problem
Explanation:
Do they work you mean?? Different variations of the position of your hands hits different muscle parts. Like doing push-ups with your hands far apart hits more of the chest area. Doing them with your hands close hits more of your triceps. I personally like them close.
Maybe you should tell him to go to a doctor or tell him to see a Psychiatrist.
Aerobic exercise is physical exercise of low to high intensity that depends primarily on the aerobic energy-generating process. Examples would be cycling, running, swimming, jogging, etc.