Answer: Endorphins
Explanation: Endorphins are chemicals secreted by the brain also known as neurotransmitters that send electrical signals inside the nervous systems.
The factors that initiate the secretion of endorphins are stress and pain.
When endorphins are secreted they reduce feelings of pains, and in runners that cause a phenomenon called " Runners high" which allows runners to keep running without feeling pain or stress.
The correct answer from the choices listed above is option B. If the biceps were attached to the top and bottom of your humerus, then you would not be able to pull your forearm up toward your shoulder. Hope this answers the question. Have a nice day.<span>
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1+17= 12
Read the passage from "An Essay on Man.”
Sedate and quiet the comparing lies,
Formed but to check, deliberate, and advise.
Self-love still stronger, as its objects nigh;
Reason’s at distance, and in prospect lie:
From the context clues, the reader can determine that deliberate means to
avoid telling the complete truth.think about something seriously.develop a logical philosophy.<span>gain perspective on a topic.</span>