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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。

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。

This current study examined the effect of a 3-week period of sexual abstinence on the neuroendocrine response to masturbation-induced orgasm. Hormonal and cardiovascular。

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