In Part One we covered all the biology behind arousal, but what happens when things progress to the next level? What is an orgasm at the biological level, and what do they do to our minds and bodies?
Let’s start at the beginning. During orgasm, everything gets crazy. On the most basic level, an orgasm is a series of rhythmic muscle contractions combined with a release of hormones in your brain. MRI studies have shown that at orgasm, your brain floods with dopamine, serotonin, nitric oxide, oxytocin, prolactin, and more. Studies have also shown orgasms can have a lot of health benefits. They can reduce anxiety and stress, lower your blood pressure, and even decrease depression! Some studies find they can improve sleep and even strengthen the immune system. But can they really make us live longer?
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