A chemical substance that behaves as a natural analgesic is
A)an amphetamine.
B)LSD.
C)epinephrine.
D)an endorphin.
E)none of these.

Question

Quizplus · Accepted Answer

Endorphins are naturally occurring chemicals in the body that are similar in structure and function to opioids, such as morphine. They are released in response to pain or stress and bind to specific receptors in the brain to block pain signals and produce feelings of pleasure or euphoria. The release of endorphins is often associated with a "natural high" or "runner's high" after exercise.

A Chemical Substance That Behaves as a Natural Analgesic Is