i seen alot of posts asking about what causes homosexuality and such and after being told the cause ( which sounds like it could be true) i decided id share it with you all. We recently had an assembly at my school about sex etc and the teacher told us that Homosexuality is caused in men when you dont have enough testotorone at birth. In women its caused wen they have too much.
Heres a little science to back it up: At the feoutal stage 2 huge "shots" of testostourone are released. One shot determines the brain's sexuality, A little tesostorone produces a female brain and alot produces a male brain. the other shot released determines the sexual organs we have.
If not equal quantities are released E.G produces a female brain and male genitalia then the person thinks that they are in the wrong body and may want to change there gender. If the brain only partially got enough / too much then the person becomes gay.
Now to me this makes alot of sense as most things like this puberty etc are controlled by hormones rather than genetics. Although the amount of testosorone released / needed to make a boy / girl may be genetic. Just my 2 cents and im not saying this to be fact as i dont no for sure, although it does make alot of sense biologically. feel free to add your own ideas / discuss
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Re:Cause of homosexuality
Date: 2008/03/07 04:48
By: BravoLima
Status:
You should have asked him to back it up with some data, and then questioned him as to where he got the data from.
The reason I highly doubt that that alone is the cause, is because naturally, women AND men have some levels of testosterone, and some levels of estrogen. They vary, and what generally leans one way creates what we label 'man' and 'woman'. It's not like the chemicals are gender exclusive or anything, which makes me doubt that it just miraculously makes you attracted to the other gender.
If this guy wants me to believe his story, I'd like to see some statistics. I would have the feeling that if insufficient levels of testosterone makes a child gay, then mothers living in poverty would be having plenty of homo children as their testosterone levels would generally be less than the typically overly-well fed Western equivalent.
This guy would have been a lot more accurate to say that there's no clear definitive answer to this question; he most likely just wants to sound impressively assertive and final. Kind of like the guy's that preached on about how we were so naive for ignoring the Y2k bug, at least until 1/1/00.......... oh nooooooooo!!!!!!
Also, from memory, the change between male and female happens quite late in the 'baby-making' process. Or not change, rather, the 'selection' thereof. Which is why men have nipples that we don't need. Though if this was a wikipedia article, that would lamely be [citation needed].
Besides, I'm gay, and I have no gender issues. I'm totally fine with being a bloke. You should always respect one's religious beliefs, however imaginary friends, delusional behaviour, a belief in a two thousand year old folk-lore should be treated by a professional.
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Re:Cause of homosexuality
Date: 2008/03/07 18:07
By: dragon_14
Status:
Bravo: I just have one issue with the gender selection thing that was said, if you are using gender and sex as interchangeable then you are wrong about it being decided late in the pregnancy. Male babies have an XY chromosome makeup which can be seen from the time it is a sperm, female is XX and can be discovered at the same time. This is actually something some scientists have used to help couples decide on the sex of their babies since the female sperm is slightly heavier then the male ones. Shawn"Dragon_14"
-Senior Manager Operations Department -Training Officer -Forum Assistant Manager TheGYC Chat Service
Science has made us gods even before we are worthy of being men.
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Re:Cause of homosexuality
Date: 2008/03/08 04:16
By: BravoLima
Status:
Oh no, I mean the actual development of 'gender'. As in, 'pee pees' and 'gi gis' (tee-hee). Of course it's 'decided' from the word go, but I meant development of sexual organs. Still note, I may be wrong about that. Like I said, [citation needed]
Dang, weighing female sperm vs. male sperm. I'll go test that out on the ole' bathroom scales You should always respect one's religious beliefs, however imaginary friends, delusional behaviour, a belief in a two thousand year old folk-lore should be treated by a professional.
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Re:Cause of homosexuality
Date: 2008/03/14 05:24
By: Sanctuary
Status:
Hmm interesting proposition about the testosterone levels, although I personally havent seen such a proposition before...
The way I understand it is that the scientific community is divided on the cause of homosexuality coming down to 'nurture' or 'nature.' At one time it was proposed to be genetic and caused by a gene on the X chromosome (Xq28) however, such little research has been done into this and the two big studies conducted both contradicted each other...
Another proposition is along the 'nurture' lines, wherein a study found the more male older siblings a boy had, the greater the probability of him being a homosexual was. The addition of each male sibling as it were, increases the porbablitiy by a third and this is thought to have the strongest connexion with homosexuality as of yet. However, there is no link like this in female homosexuality, so it is thought that the reason lies that occupying a womb which has previously held a male foetus affects sexuality. A very significant find is concerned with H-Y antigens complexes on the Y chromosome, which I would do no justice in trying to explain, but I list the journal entry below (number 3).
However, it is noted that these genes are not linked with testosterone or anti Mullerian hormones, which are responsible for the masculinisation of the foetus.
Either way, good research papers to look at are: 1 - 'A linkage between DNA markers on the X chromosome and male sexual orientation' Published in the journal Science, 1993, Hamer D.H., Magnuson V.L. 2 - 'Birth order and sibling sex ratio in homosexual versus heterosexual males and females' Published in Annual Review of Sex Research, 1997, Blanchard R. 3 - 'H-Y Antigen and homosexuality in men' Published in Journal of Theoretical Biology, 1997, Blanchard R., Klassen P.
A brief review of these and a few other papers relating to homosexuality can be found in Chapter 7 of Genome (The Autobiography of a Species in 23 Chapters), 1999, Ridley M. "What is bad? What is good? What should one love and what hate? What does one live for? And what am I? What is life, and what is death? What power governs all?"
There was no answer to any of these questions, except one, and that not a logical answer and not at all a reply to them. The answer was: "You'll die and all will end. You'll die and know all, or cease asking." But dying was also dreadful...
-Leo Tolstoy
The administrator has disabled public write access.
Re:Cause of homosexuality
Date: 2008/03/14 05:24
By: Sanctuary
Status:
Hmm interesting proposition about the testosterone levels, although I personally havent seen such a proposition before...
The way I understand it is that the scientific community is divided on the cause of homosexuality coming down to 'nurture' or 'nature.' At one time it was proposed to be genetic and caused by a gene on the X chromosome (Xq28) however, such little research has been done into this and the two big studies conducted both contradicted each other...
Another proposition is along the 'nurture' lines, wherein a study found the more male older siblings a boy had, the greater the probability of him being a homosexual was. The addition of each male sibling as it were, increases the porbablitiy by a third and this is thought to have the strongest connexion with homosexuality as of yet. However, there is no link like this in female homosexuality, so it is thought that the reason lies that occupying a womb which has previously held a male foetus affects sexuality. A very significant find is concerned with H-Y antigens complexes on the Y chromosome, which I would do no justice in trying to explain, but I list the journal entry below (number 3).
However, it is noted that these genes are not linked with testosterone or anti Mullerian hormones, which are responsible for the masculinisation of the foetus.
Either way, good research papers to look at are: 1 - 'A linkage between DNA markers on the X chromosome and male sexual orientation' Published in the journal Science, 1993, Hamer D.H., Magnuson V.L. 2 - 'Birth order and sibling sex ratio in homosexual versus heterosexual males and females' Published in Annual Review of Sex Research, 1997, Blanchard R. 3 - 'H-Y Antigen and homosexuality in men' Published in Journal of Theoretical Biology, 1997, Blanchard R., Klassen P.
A brief review of these and a few other papers relating to homosexuality can be found in Chapter 7 of Genome (The Autobiography of a Species in 23 Chapters), 1999, Ridley M. "What is bad? What is good? What should one love and what hate? What does one live for? And what am I? What is life, and what is death? What power governs all?"
There was no answer to any of these questions, except one, and that not a logical answer and not at all a reply to them. The answer was: "You'll die and all will end. You'll die and know all, or cease asking." But dying was also dreadful...
-Leo Tolstoy
The administrator has disabled public write access.
