Its main purpose is to restore partial flow of oxygenated blood to the brain and heart. ♥
Answer:
well if you think about it every teen is starting to care about their lungs,health and teeth
Explanation:
Answer: Circuit training builds your aerobic, or cardiovascular, endurance, too! “Your cardiorespiratory system has to work harder to keep up with the relentless demand for energy from your working muscles as you perform back-to-back exercises,” he says.
Explanation:
Answer:
the video describes an unhealthy heart as being enlarged.
Explanation:
duh i watched the video