Well, outcomes can include tiredness, depression, feeling of addiction, and if used with a high dosage it can lead to being sick and slow to fast heartbeats. :).
<span>Body's ability to endure 20 minutes or more of strenuous, continuous exercise
-with oxygen
-heart becomes stronger and more efficient
-best thing you can do for your body
</span><span>Aerobic exercise</span>
Answer:
B. a substance that sends the immune system into action
Explanation:
