Chapter 12, Problem 5AYKB

Summary Introduction

To review:

The effects of endorphins on the perception of pain, the ability to resist muscle fatigue in an athlete, andwhether endorphins are able to stop the release of the source of the athlete’s pain.

Introduction:

An endorphin is a class of opioids that function as a neuropeptide. They have the property to relieve pain, and thus, are known as analgesics. They serve to depress or suppress the activities of the nervous system. They are also involved in aggressive, submissive, and sexual behavior. Endorphins are released during “runner’s high.”