Based on the finding that _____, it is believed that endorphins are linked to pain relief.

Question

Quizplus · Accepted Answer

The finding mentioned in option B suggests that endorphins are linked to pain relief, as naloxone injections block the effects of endorphins and placebos, which are both known to provide pain relief. This implies that endorphins work through a similar mechanism as placebos, which is mediated by the body's natural opioid system that can be blocked by naloxone. Option A is incorrect because naloxone injections would not increase the analgesic effect of endorphins, but rather decrease it. Options C and D are also incorrect as they do not provide evidence for the link between endorphins and pain relief.

Based on the Finding That _____, It Is Believed That