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Brain Sex: The Real Difference Between Men and Women Paperback – August 1, 1992
Purchase options and add-ons
- Print length256 pages
- LanguageEnglish
- PublisherDelta
- Publication dateAugust 1, 1992
- Dimensions5.26 x 0.57 x 7.99 inches
- ISBN-100385311834
- ISBN-13978-0385311830
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About the Author
David Jessel is a former TV and radio presenter, an author, and an advocate for the wrongfully convicted. He is best known for his investigative television shows Rough Justice and Trial and Error, which led to the re-examination and overturning of more than a dozen criminal convictions. He then served for ten years on the Criminal Cases Review Commission, where he continued to investigate possible miscarriages of justice. Since 2014, he has been a member of the Complaints Committee of the Independent Press Standards Organization.
Product details
- Publisher : Delta; 2nd ed. edition (August 1, 1992)
- Language : English
- Paperback : 256 pages
- ISBN-10 : 0385311834
- ISBN-13 : 978-0385311830
- Item Weight : 8 ounces
- Dimensions : 5.26 x 0.57 x 7.99 inches
- Best Sellers Rank: #487,723 in Books (See Top 100 in Books)
- #377 in Medical Psychology of Sexuality
- #1,065 in General Gender Studies
- #1,149 in Popular Psychology Personality Study
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I may have loaned my original copy, which was heavily annotated with marginal thinking and lavish use of highlighting pen. It is no longer in my possession. I have become intrigued and mystified by the debate that still rages on this issue. I am as annoyed as I am bemused by what seems to be happening on North American campuses where SJWs seem to be running out of control. I was embarrassed by the feminist inspired critique of Cassie Jays film The Red Pill in my homeland (Australia). I wanted to reacquaint myself with a number of references to help should I again enter the sex-differentiation arena.
I looked at Simon Baron Cohen's work on Amazon and was about to purchase it when I recalled my affection for this neat little book. A quick search showed that it was still available and had been reviewed and republished a number of times since my first exposure. I purchased it rather than Baron Cohen's work, not necessarily because it is superior- I cannot say that- but because I found it so easy to read and I would like my young daughter to understand the material. I may still purchase The Essential Difference, as an added reference, but for the moment I am happy that this book remains relevant and concise.
I cannot recommend it highly enough for anyone interested in refuting the nonsense that passes for argument among the feminist tribes.
The authors begin with a basic discussion of gender. The human X and Y chromosome system is discussed. From the start, though, Moir and Jessel make it clear that sexuality is much more complicated than simply a male vs. female chromosomal make up. They cite cases that do not fit this definition. Turner girls, whose cells contain an extra X chromosome, are used as an example. These girls show exaggerated feminine traits such as a higher interest in dolls and eventually in babies and young children. They also demonstrate that genetic make up is not the sole determinant of sexual behavior. They discuss girls with congenital adrenal hyperplasia (CAH), who tend to be more masculine in behavior, having a higher interest in cars and trucks as children for example. Although genetically XY, CAH girls are exposed to testosterone levels in the womb not normally experienced by female embryos. From here, the authors introduce concepts of masculinization of the brain. Their arguments depend on data from studies in rats and monkeys that show how “male” brains can develop in female bodies, and vice versa, if only given the right hormone at the right time. All of these points show the underlying principles of gender and present the idea of gender as a continuum.
After establishing a view of sexuality that transcends mere chromosomes or body parts, the authors turn to the human story. They discuss how human babies only hours old already show sexual biases and predispositions. They cite data on newborn girls being significantly more sensitive to sound and touch than newborn boys. They also point out that speech problems are almost exclusively seen amongst boys and how little girls learn to speak sooner on average. The authors argue that the inherent differences in their brains lead the sexes to prefer different cognitive strategies. Naturally, as the children grow, each sex preferentially strengthens different “cognitive muscles,” separating them further.
Next, the authors turn to puberty, during which a large influx of hormones further accentuates sexual differences. They make good use of the general acceptance of menstrual hormones in their argument. They discuss women who have extreme hormonal cycles during menstruation and how roughly 50% of psychiatric, medical, and criminal admissions of women can be traced back to “that time of the month.” They also mention the more common inconveniences experienced by most women. None of this is necessarily groundbreaking, but they use this general conception to pose an interesting question. If we admit menstrual hormones can make such a difference in behavior, why are we so reluctant to admit that prenatal, pubertal, and general differences in hormonal levels could have a similar effect?
The authors go on to discuss the male side of hormonal activity on the brain. They cite human and animal studies in which testosterone boosters were shown to increase aggression and castration, shown to decrease it. They go beyond this to paint a picture of male hierarchies fueled by aggression, using familiar scenarios like rowdy soccer fans and male schoolyard antics.
Many of us have a sense of sexual difference, but it is often seen as uncouth to acknowledge it. This book does a good job of illuminating science’s perspective on the issue. The authors use scientific data mingled with common metaphors and perceptions to demonstrate their point. Much of the data I had heard about before, but it was creatively strung together to form a convincing image of sexual difference that extended from the infancy to adulthood.
My only complaints would be about the tone. At times the authors get a little excited and over the top, which made them seem a little biased. For example, the authors use language like “it’s time to explode the social myth that men and women are equal.” They also got grimly sarcastic at points: “In theory, we could change [the pattern] absolutely, by the manipulation of fetal hormones – there’s no little boy we can’t make behave like a little girl, and vice versa… All it needs is the application of Nazi principles to late twentieth-century biochemical technology.” This sarcastic tone surfaces at other places throughout the book. It likely stems from the issue being such a polarized one, and I am sure the authors did receive their share of spite for their attitudes towards the sexes. Perhaps this kind of language was convincing to some, and it was certainly spicy and fun. However, it did annoy me at points because it felt like an oversimplification or a somewhat bitter ridiculing of the opposing viewpoint.
Moir and Jessel use skills of science and persuasive writing to shed light on the topic of sexual differences. They add scientific data to a usually political discussion, and I think it definitely has a place there. Although they go overboard at times, this can be seen as a passion about the topic, passion which definitely shined through during the course of the book. They appealed to common sense values and reasoning and used familiar settings and stories in their arguments. Because of this, they found success. Their book became a best seller, and they raised awareness about their view of sexual dimorphism. Personally, I would also call the book a success. It was interesting and had me thinking about it weeks later.
This shows how both men and women are strong and weak in certain areas because of how their brains are structured and how to take advantage of those differences. Why it would be better for females to have a more varied testing schedule in schools. Why men and women think differently and how to accept those differences and work with them. Why we area all dumb in certain areas and smart in others.
Men and women are sensitive in different areas. Relationships would be better if both men and women understood these differences and honored them. Men cannot be women as women cannot be men. The differences started when the sex was created in the womb. The differences show up in the first hour after birth and not because of how society molds us.
Read this book if you want to deal with people, both men and women.
Top reviews from other countries
Fazit: Denke nicht politisch, denke biologisch (die Biologie als Quelle der Antworten). Dieses Buch ist lesenswert!
So if your child has a gender diverse medical or personal challenge this is a simple place to start
If a family member has just declared your not going to be the grandparents you dreamed of because they have a same sex preference this information can take the steam out of your fears, for a starter
If you are just curious or wish to broaden your understanding, find the answers that can be kept behind cultural fears, then this book takes the shame, judgement and fears out of the equation when it comes to gender diversity
It not you, it's not them, it's biology. It help to understand in the correct context what is going on with gender diversity
Ace book
I have a Masters Degree so I know when things get glib with science.
If these things interest you it will give you a unique insight in a wold where self-identification makes a person a real woman. It is understanding and sympathetic to trans people and will give you a better understanding of them.
Only thing I came away thinking was that men are incapable of love.









