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Chemical released during sex

Scientists in fields ranging from anthropology to neuroscience have been asking this same question albeit less eloquently for decades. It turns out the science behind love is both simpler and more complex than we might think. What we do know, however, is that much of love can be explained by chemistry. Think of the last time you ran into someone you find attractive. You may have stammered, your palms may have sweated; you may have said something incredibly asinine and tripped spectacularly while trying to saunter away or is that just me?
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This Is What Happens to Your Brain When You Have Sex

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Surprising ways sex affects the brain - Insider

Sex is one of our biggest preoccupations — causing thrills, heartache and downright confusion. But until recently, exactly what happens in the brain during sex was something of a mystery to scientists. Scientists used scans to monitor women's brains during orgasm and found that different brain parts are activated when various parts of her body are aroused. They found that up to 30 different parts of the brain are activated, including those responsible for emotion, touch, joy, satisfaction and memory.
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More sex is the secret to a longer, healthier life

Oxytocin has been best known for its roles in female reproduction. It is released in large amounts during labor, and after stimulation of the nipples. It is a facilitator for childbirth and breastfeeding. However, recent studies have begun to investigate oxytocin's role in various behaviors, including orgasm, social recognition, bonding, and maternal behaviors.
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These devices can measure the blood flow and neuron activity in the brain. By studying the brain activity of people having orgasms in these machines, scientists have learned some pretty amazing stuff. There's a reason why people tend to feel bolder and less inhibited during sex — the part of your brain in charge of your logical reasoning skills temporarily goes on vacation. This is the part of the brain that is responsible for reason, decision making, and value judgments. This shutdown of the lateral orbitofrontal cortex actually makes sense, as fear and anxiety can interrupt arousal and lead to problems like performance anxiety.
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