The book Masters of Sex I recently read, I read the play first because these two men are so famous. I would like to summarize the contributions of Masters and Johnson to the science of sex, specifically, I would like to summarize it into seven contributions and one failure. The first and greatest contribution is the distinction between Freud’s “vaginal pleasure and clitoral pleasure”. The psychological medical community used to use Freud’s theory that there are two types of female pleasure, vaginal pleasure and clitoral pleasure. Clitoral pleasure is a masculine, neurotic, frigid, bad thing. After a girl goes through the stage of clitoral pleasure, she moves on to normal vaginal pleasure. Freud thought that women who enjoyed vaginal orgasms were more feminine, more mature, more normal. But once these two studies came out, they used very scientific measurements and video cameras to find that there was no distinction between vaginal pleasure and clitoral pleasure, which was a very big contribution and overturned Freud’s theory. The second contribution was the discovery of multiple orgasms in women. In the course of their experiments, they found that with the right stimuli and the right conditions, women could have multiple orgasms within minutes, or hours, but once a man ejaculated, he would enter a period of inactivity of about an hour. This theory is too subversive. In the past, American society does not even know much about female orgasm, after the publication of this study, we all got “orgasm compulsion”, we are talking about female orgasm, women will go to the doctor if they do not have orgasm, and say I have a disease, sexual frigidity or something. So this thing is also a very, very revolutionary contribution, and also a contribution to feminism, Masters’ research proved that women are more sexually capable than men, which is particularly beneficial to feminism. Thirdly, age is not an issue. Their research found that men and women’s orgasms can last up to age 80, something that was a surprise to many older people. Like so many of us in China are rarely in their 40s, and don’t have sex by the age of 50, but their research says it can generally last until 80. The fourth contribution is to give a proper name to masturbation. They found through their research that the most intense orgasms for women occur not during sex with a male partner, but when they masturbate themselves. This was like a murderous sword to men’s self-esteem and added fuel to the fire of feminism. It is very subversive and provocative that women’s sexual pleasure can leave men completely. And his research proves that every American woman has the possibility of orgasm. Some people think they are sexually indifferent and may not have orgasms, but through their therapy they have found that every woman can, once you learn how. The fifth one is about the “orgasm” issue. We found in China that in a national survey in about 2004, 28% of women in the 60-64 age group had never experienced an orgasm in their lives, and that’s a terrible, terrible number. These women have been women all their lives just to have children, and apart from having children, they are totally suffering. Sixth, they found that male masturbation is harmless. For example, the book “Masters of Sex” says “those men who masturbate in private can finally be sure that such masturbation does not make them crazy. In fact, in the West, since the 17th and 18th centuries, there are many horrible stories about masturbation, saying that if a person masturbates, he or she will develop epilepsy, crohns, lung disease, neurosis, and so on. All kinds of sins were associated with masturbation. But their research found that this is not harmful at all. It is generally thought that athletes should not do it before they go on the field, and if they do it, it will consume their energy. But they found that masturbation or ejaculation after sexual intercourse has a negative impact on the male body in sports training programs is wrong, through their research proved that this is no effect. The seventh one, about penis size and sexual performance, they proved that it does not matter. This also relieved so many anxiety disorders, so many men went to see anxiety disorders thinking theirs was too small. What would I say is a failing? A failure is that they ended up writing several books, the first one called Human Sexual Response, the second one called Human Sexual Dysfunction, and the third one called Homosexuality Research. In The Homosexual Study it mentions being able to change sexual orientation through their treatment. This was a big failure and was later criticized a lot. Because sexual orientation is not something that can be changed through therapy. They were saying that they could turn homosexuals into heterosexuals through their therapy, which was a mistake. It is true that some married gay men were able to have sex with their wives and have children, but in fact the men who came to him were already bisexual and could not prove that they could change their homosexuality to heterosexuality through their treatment.