Depends on how fast he runs in a sitting. If he runs slow during the 20 minutes he isn't getting much done :D.
<span>Heart failure is risk that someone is taking stimulants in his or her body. Stimulants are chemicals that can add to your alertness and too much of it can damage your nervous system. When your nervous system will react to the high level of stimulants, you will get nervous that will cause for your heart to pump more blood. When your hear pumps more blood than the oxygen intake in the lungs, it will cause a hear attack or hear failure.</span>
Answer:
Explanation:
Stress Reduction is the action of doing things that help you relax and release all of your stress. For example, Meditating can help you as well as keeping a positive attitude