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Endorphins are endogenous opioid polypeptide compounds. They are produced by the pituitary gland and the hypothalamus in vertebrates during strenuous exercise,[1] excitement, pain and orgasm,[2][3] and they resemble the opiates in their abilities to produce analgesia and a sense of well-being. Endorphins work as "natural pain relievers", whose effects may be enhanced by other medications.

The term "endorphin" implies a pharmacological activity (analogous to the activity of the corticosteroid category of biochemicals) as opposed to a specific chemical formulation. It consists of two parts: endo- and -orphin; these are short forms of the words endogenous and morphine, intended to mean "a morphine-like substance originating from within the body."[4]

The term endorphin rush has been adopted in popular speech to refer to feelings of exhilaration brought on by pain, danger, or other forms of stress,[1] supposedly due to the influence of endorphins. When a nerve impulse reaches the spinal cord, endorphins are released which prevent nerve cells from releasing more pain signals. Immediately after injury, endorphins allow humans to feel a sense of power and control over themselves that allows them to persist with activity for an extended time.

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Smallwikipedialogo.png This page uses content from Wikipedia. The original article was at Endorphin. The list of authors can be seen in the page history. As with Depression Wiki, the text of Wikipedia is available under the GNU Free Documentation License.

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