You and I know that the distribution of hormones is, usually, gender related.
There are always anomalies in this world.
So it is a generality.
Edit: No where am I saying that women should scoot there asses to the kitchen.
I'm just saying that, in general, the personality and behavior of a man or women is largely determined by evolutionary gender roles.
She found that women who are confident, assertive, influential and with a strong sense of self have high levels of testosterone (you normally know one when you've met one) and produce sons, whereas mothers of daughters tend to be more nurturing, empathic and tolerant and have lower testosterone.
Grant has new research published this month which, she says, puts her theory on a firmer footing and yet again turns reproductive biology on its head. What she has come up with is a mechanism that has proved (albeit in cows, which sounds odd but is considered an acceptable model) that levels of testosterone in the follicles (which produce the egg) reliably predict the sex of the embryo and, more startling, that the egg may well come out already adapted to receive an X or Y chromosome-bearing sperm. In lay terms this means that the female has already “decided” which sex offspring to have before sperm get involved.
Anecdotally, it is always going to be easy to dismiss Grant's theory by coming up with someone who does not fit the mould. That is because most women can produce both-sex children. If you draw a normal distribution curve of testosterone, most women will fall in the middle; they have a medium amount and fluctuate from side to side across a middle line month to month, perhaps producing an egg adapted to an X chromosome one cycle, a Y chromosome the next. In women, testosterone is also very influenced by external stresses - on a grand scale, war, but also smaller stresses such as a death in family or changing jobs. But, Grant asserts, there are some women at either extremes of the line, still within a normal range, with high or low levels who will always have boys or always have girls - roughly 68 per cent in the middle, and 16 per cent at either end. Grant says that before contraception was widely used, she saw families with 12 or 13 children of the same sex. “I would still never say ‘never' to these women, though,” she admits. “Testosterone dips with age. You could have six boys in a row and suddenly produce a girl in your forties”.
rof A human male and female are about as genetically different as a human and a chimpanzee of the same gender.
rof A human male and female are about as genetically different as a human and a chimpanzee of the same gender.
:rofl You said "tain't"You apparently have a strong need to see it as "men are this" and "women are this." But it tain't necessarily so. Our evolutionary heritage is A LOT more complicated than that.
For instance, the level of testosterone in mothers determines whether they have male or female offspring, and it is a changeable condition:
Women with high testosterone may be more likely to have sons - Times Online
I would guess that River has higher testosterone than average, as does Chuck, Aps, and 1069. All mothers of sons, fwiw.
rof A human male and female are about as genetically different as a human and a chimpanzee of the same gender.
I look forward to the day when we outrgow these tired notions that our personalities and brains are shaped by our genitalia.
When I want to display my assertiveness, I tend to use another finger.You can tell how assertive someone will be based upon the length of their ring finger (4D) in comparison to their index finger (2D).
Men whose ring fingers are shorter than their index fingers have lower levels of testosterone. Women whose ring fingers are as long or longer than their index fingers tend to have high levels of testosterone.
The old hunter/gatherer dynamic has largely been discarded. It's about hormones, these days.
When I want to display my assertiveness, I tend to use another finger.
I look forward to the day when we outrgow these tired notions that our personalities and brains are shaped by our genitalia.
In my case, the brain isn't necessarily shaped by my genitalia, just located there.
We are legally equal to men, and more similar than those who want to reinforce sex differences will ever admit.Womens rights and equality is an equalization of legal rights, but does not make women equal to men. It's not possible. Women are superior to men in some social arenas, and men are superior to women in others.
Reason cannot over-ride human biochemistry and endocrinology.
You can tell how assertive someone will be based upon the length of their ring finger (4D) in comparison to their index finger (2D).
Men whose ring fingers are shorter than their index fingers have lower levels of testosterone. Women whose ring fingers are as long or longer than their index fingers tend to have high levels of testosterone.
The old hunter/gatherer dynamic has largely been discarded. It's about hormones, these days.
I hate to say the obvious, but you must have a really tiny brain.
By far and large, the only species on this planet that has trouble with acceptance of the natural order of things, and problems accepting that nature works, if you let it, are the humans.
We are legally equal to men, and more similar than those who want to reinforce sex differences will ever admit.
Some women are genetically predisposed to be more stereotypically male in their personalities, and that's perfectly normal--FOR THOSE WOMEN.
False. Chimps are vastly different to humans genetically. That 99% similar thing was based on flawed analysis (not based on chromosomal/gene analysis).
As often noted, the genomes of humans and chimpanzees are 98.5 percent identical, when each of their three billion DNA units are compared. But what of men and women, who have different chromosomes?
Until now, biologists have said that makes no difference, because there are almost no genes on the Y, and in women one of the two X chromosomes is inactivated, so that both men and women have one working X chromosome.
But researchers have recently found that several hundred genes on the X escape inactivation. Taking those genes into account along with the new tally of Y genes gives this result: Men and women differ by 1 to 2 percent of their genomes, Dr. Page said, which is the same as the difference between a man and a male chimpanzee or between a woman and a female chimpanzee.
Almost all male-female differences, whether in cognition, behavior, anatomy or susceptibility to disease, have usually been attributed to the sex hormones. But given the genomic differences that are now apparent, that premise has to be re-examined, in Dr. Page's view.
''We all recite the mantra that we are 99 percent identical and take political comfort in it,'' Dr. Page said. ''But the reality is that the genetic difference between males and females absolutely dwarfs all other differences in the human genome.''
We (women) are similar to men in that we have the same physical characteristics, except for sexual characteristics. These differences are what is responsible for our very existence. To me, that's a pretty big deal.
No, humans really do have 99% of genes in common with chimps, just as we have 75% of genes in common with nematode worms (most DNA is junk). However, there is evidence that the difference in DNA between human men and women is equal to or even greater than that of a male human and chimpanzee.