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What are endorphins?

Learn about what endorphins are and their function within the body.

Chocolate causes the release of endorphins. [©Shutterstock, 2010]
©Shutterstock, 2010
Chocolate causes the release of endorphins.

Endorphins are chemical substances called polypeptides that are produced in the brain. They act as opiates, in that they produce an absence to the sensation of pain by binding to opiate receptor sites involved in pain perception. This action increases the threshold for pain.

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