Post orgasm shrinkage

Sex—we all love it. It makes our brains feel a sudden, almost overwhelming sense of joy that quickly fades us back to our lame realities. Some of these effects are actually pretty terrifying, for example…. Normal sex will never do. We want sex that will destroy our brains and render us incapable of functioning like a normal human. We want our cognitive processes permanently disrupted by the force of an earth-shattering orgasm that causes an earthquake in Beijing, killing thousands.
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Five Bizarre Effects Sex Has on The Brain

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Physiology of Sexual Response_ Dr Mahmoud Ahmad Fora

The physiology of arousal in the male is elicited in numerous ways. The neurological mechanisms are what we have an interest in for this course. Sensory organs detect anal stimulation, skin stimulation, perineal stimulation as well as friction on the glans penis. All of these sensations are transmitted via the pudendal nerve to the sacral plexus. Likewise, the male's sexual drive causes sexual organs to overfill causing increased secretions and vasocongestion. These signals are also transmitted to the sacral plexus.
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9 Weird Things Your Penis Does

In human sexuality , the refractory period is usually the recovery phase after orgasm during which it is physiologically impossible for a man to have additional orgasms. While the refractory period varies widely among individuals, ranging from minutes to days, [4] [5] [6] most men cannot achieve or maintain an erection during this time, and many perceive a psychological feeling of satisfaction and are temporarily uninterested in further sexual activity; the penis may be hypersensitive and further sexual stimulation may feel painful during this time frame. An increased infusion of the hormone oxytocin during ejaculation is believed to be chiefly responsible for the male refractory period, and the amount by which oxytocin is increased may affect the length of each refractory period.
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When a man gets an erection, his body goes through four stages of sexual response: arousal, plateau, orgasm and resolution. A man gets an erection with physical or psychological stimulation, or both. This causes more blood to flow into three spongy areas called corpora that run along the length of his penis. The skin is loose and mobile, allowing his penis to grow.
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