- Study identify 2 key neurotransmitters at different phases of sex. In male mouse brains, acetylcholine is released up to insertion of penis into vagina. Dopamine and acetylcholine then oscillated in brain with mouse’s thrusting motions. On ejaculation, dopamine release slowed before rising quickly. https://www.popsci.com/science/mouse-sex-dopamine-receptors-neurotransmitters/ 8 comments science
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