When asked what happens to your body when you have an orgasm, surely the word "pleasure" comes to mind and you are right, but other things happen that we are going to discover in this post.
When the start excitement it's like a fireworks show that starts in the sensory cortex, which is the area of your brain that receives the signal from the nerve endings of your genitals through the spinal cord. The brain begins to send blood to your genitals, mediated by the parasympathetic branch of the nervous system, initiating the sexual response with the erection and lubrication of your penis.
Continue there stimulation, begins the sympathetic activity that causes your heart rate to accelerate, your body temperature to increase, your breathing to accelerate and you have greater muscle tension.
From there the signal quickly passes to the limbic system that governs your memory and your emotions, producing a great spark in the hypothalamus and the release of oxytocin Y endorphins.
At the same time, there is an inhibition of the lateral orbitofrontal cortex, which is the part of the brain responsible for the processes of reason and control, turning this area off completely.
In addition you release dopamine (the hormone of well-being and satisfaction), the same one that is activated when you take a drug. Therefore, sex can become additive. And that's when it explodes orgasm, you experience contractions in the anal sphincter, prostate gland, and muscles of your penis, along with ejaculation and expulsion of semen.
Finally, what is known as refractory period of the man that is nothing more than the return to the basal physiological levels, which makes it impossible for you to reach another orgasm.
Remember that reaching orgasm once a day is an activity as beneficial as exercising daily, eating five pieces of fruit or sleeping eight hours a day.
Take care, man.