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LH, FSH, GH, prolactin and β -endorphin plasma concentrations in men have been shown to be unaffected by film-induced sexual arousal, masturbation or sexual intercourse (Brown and。

Sexual arousal and orgasm produce a distinct pattern of neuroendocrine alterations in women, primarily inducing a lomasturbation endorphineng-lasting elevation in plasma prolactin concentrations. These results。

Some researchers have learned that strenuous exercise releases endorphins into the blood stream. Others have found that endorphins are released during orgasm, as well as during。

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