endorphin

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English[edit]

Etymology[edit]

Borrowed from French endorphine, from endo(gène) (endogenous, produced within) and morphine.

Pronunciation[edit]

Noun[edit]

endorphin (plural endorphins)

  1. (biochemistry) Any of a group of peptide hormones found in the brain that act as neurotransmitters and have properties similar to morphine.
    • 2019, Curt L. Lox; Kathleen A. Martin Ginis; Heather L. Gainforth; Steven J. Petruzzello, The Psychology of Exercise: Integrating Theory and Practice, Routledge, →ISBN:
      The explanation for the depression-reducing effects of exercise that clearly has been the most popular with the media is the endorphin hypothesis (see Hoffmann, 1997), which has also been discussed as a possible explanation in nearly every exercise-depression literature review.

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