Answer:
true
yes because it helps our body to stay healthy
It would be heart. I hope this helps
Stress is a biological and psychological response experienced on encountering a threat that we feel we do not have the resources to deal with.
A stressor is the stimulus (or threat) that causes stress, e.g. exam, divorce, death of loved one, moving house, loss of job.
Sudden and severe stress generally produces:
<span><span>-Increase in heart rate
</span><span>-Increase in breathing (lungs dilate)
</span><span>-Decrease in digestive activity (don’t feel hungry)
</span><span>-Liver released glucose for energy
Hope this helps :-)</span></span>
The answer is B.
A training program will enhance his strength and build up his muscles.
It's caused by a buildup of lactic acid, but is really a signal your muscle is using to let your brain know it's running out of energy. Eventually, you'll build up enough endurance that your muscles won't freak out so soon.
