Orgasm, generally referred to as “sexual climax”, refers to a gradually rising state of excitement and tension when people are subjected to intense sexual stimulation, and when this state accumulates to its peak and reaches its strongest point it explodes, bringing a feeling of extreme pleasure for a few seconds to tens of seconds. Generally speaking, both men and women can have orgasms. Even if you don’t have an orgasm, you can still have pleasurable feelings during sex, but if you can reach an orgasm, you can reap an even better experience. First, how is orgasm produced? For male orgasm, it is usually achieved by stimulating the male penis and eventually ejaculating; for female orgasm, it is produced by stimulating the clitoris (vaginal orgasm is also achieved by pulling the muscles near the clitoris). In addition, stimulation of the nipples, anus, rectum, prostate and kissing or stimulating other body parts will also produce many forms of physical and psychological orgasm. Second, what changes will happen to the body and brain during orgasm? During orgasm, the brain produces a large number of different hormones and neurochemicals, such as dopamine, prolactin, serotonin, etc., which make people feel pleasure, excitement, relaxation, and a sense of satisfaction after orgasm. The male orgasm, which usually begins with an erection of the penis and ends with the pleasure of ejaculation making the tension emitted, usually lasts 3-10 seconds. The increased pressure of semen in the urethra causes nerve sensory stimulation in the pubic area, and the skeletal muscles contract naturally and rhythmically to eject semen from the urethra, leading to ejaculation. After the orgasm, the male enters a period of “male withdrawal”, forcing rest. In women, the orgasm usually lasts longer than in men, about 20 seconds on average, with the clitoris engorged and swollen, the muscles of the vagina, uterus and anus contracting rhythmically, breathing and heartbeat accelerating, and the skin turning red. Women have a short or even negligible period of inactivity, so women can usually have multiple orgasms in a short period of time. Third, orgasm is affected by what factors? Orgasm is a complex physiological activity, affecting many factors: 1, age: as age increases, the feeling of stimulation of the genitals is weakened, the duration of orgasm will also be shortened, the period of inactivity will also increase with age; 2, drugs: drugs can affect the production of orgasm, especially some psychotropic drugs (such as antidepressants, etc.) will cause a decrease in orgasmic function, alcohol will also make sex drive Reduced libido and male erection, ejaculation disorders; 3, disease: diabetes, Parkinson’s disease, premature ejaculation and other diseases patients, may produce a certain degree of orgasmic disorder, sexual satisfaction has decreased, affecting the orgasm; 4, psychological: the degree of commitment of both partners, or sexual stimulation (such as masturbation, sexual intercourse, etc.) have an unreasonable sense of guilt, will prevent orgasm. Fourth, what are the benefits of orgasm? In fact, the orgasm has positive implications for human health. Many studies have shown that moderate orgasms can prevent many diseases from occurring. Comparative data studies show that men who have 2 or more orgasms per week have a 50% lower risk of death than men who have less than 1 orgasm per month. In addition, there are studies that prove that orgasm can reduce the prevalence of cancer. Orgasm significantly boosts blood flow to the brain, and there is a statistically significant positive correlation between sexual frigidity and heart damage. Orgasm can also reduce pain. A study of 83 women with migraines found that orgasm relieved migraines in at least 50 percent of women. Although there is no reliable evidence of migraine relief through orgasm and it is not as effective as medication, the analgesic effect of orgasm does exist. This may also explain why being slapped or treated slightly roughly during sex may have a pleasurable effect. Sex is not only about reproduction, but also about intimacy, of which orgasm is only an add-on. The purpose of sex is never to have an orgasm, but to feel the unity of mind and body, to feel the satisfaction and pleasure of being together from the bottom of your heart, is the focus of sex. References: [1] Wu Jieping et al. Chinese Encyclopedia of Sexual Science [M]. Beijing: China Encyclopedia Press, 1998. [2] Hu Pecheng, Xu Zhenlei, Bai Lu. Biological study of orgasm[J]. China Sex Science,2011,20(1):54-58. [3] Hu Pecheng,Xu Zhenlei,Bai Lu. Biological studies of orgasm (continued from I)[J]. China Sex Science,2011,20(2):57-64. [4]Hu Pecheng,Xu Zhenlei,Bai Lu. Biological study of orgasm (continued from II)[J]. Chinese sex science,2011,20(3):51-60.