Melissa has just completed running a marathon. She is so elated that she feels little fatigue or discomfort. Her lack of pain is probably the result of the release of

Question

Quizplus · Accepted Answer

Endorphins are natural neurotransmitters produced by the body that act as painkillers and can produce feelings of euphoria or well-being. They are released during exercise and can help mask feelings of fatigue and discomfort. This is likely why Melissa feels little pain or fatigue after running a marathon. ACh, dopamine, and norepinephrine do not play as significant a role in pain relief or euphoria as endorphins do.

Melissa Has Just Completed Running a Marathon