According to a study described in Module Five,patients with jaw pain who received a placebo injection:
A) experienced an increase in REI sleep
B) showed increased levels of endorphins
C) showed decreased levels of endorphins
D) reported less dread

Question

Quizplus · Accepted Answer

The study found that patients with jaw pain who received a placebo injection showed increased levels of endorphins, which are the body's natural painkillers, indicating a placebo effect that contributed to their pain relief.

According to a Study Described in Module Five,patients with Jaw