Brain + Orgasm

For men and women, there are four types of nerves responsible for sending information to the brain during an orgasm. The hypogastric nerve transmits signals from the uterus and the cervix in women, and from the prostate in men; the pelvic nerve transmits signals from the vagina and cervix in women, and from the rectum in both sexes; the pudendal nerve transmits from the clitoris in women, and from the scrotum and penis in men; and the vagus nerve transmits from the cervix, uterus, and vagina in women.
Neurochemicals Give Off the 'Euphoric' Feeling

The “cloud nine” feeling reported by many during sex is linked to the nerves sent to the brain’s pleasure center, or reward circuit. The sexual arousals felt in the body flood the brain with a surge of neurochemicals, which are chemical messengers that forge emotions, feelings of attachment, and even love, according to Psychology Today. The level of pleasure is contingent on the release of these chemicals that can be used to measure the intensity of your climax. The areas of the brain impacted by sexual arousal include the amygdala, nucleus accumbens, ventral tegmental area (VTA), cerebellum, and the pituitary gland.
Male and Female Brain Similar to Being on Heroin

Although both sexes tend to engage in different behaviors during sex, the brains of men and women are not all that different. During an orgasm, the lateral orbitofrontal cortex — the brain region behind the left eye — shuts down during an orgasm. This region is considered to be the voice of reason and controls behavior. The brain of both a man and woman is said to look much like the brain of a person taking heroin during an orgasm, according to a study published in the Journal of Neuroscience.
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