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调查:孕期抽烟易导致胎儿性取向变化

2014-01-23    来源:Mirror News    【      美国外教 在线口语培训

据英国《镜报》报道,荷兰神经生物学家近日发现,抽烟的孕妇所怀的小孩将来成为同性恋的概率较大。阿姆斯特丹大学的迪克•斯瓦柏教授在书中写到,胎儿的性取向会受到母亲生活方式的影响。

对于性取向追根溯源的争论早已持续了数十年,有些人称这是人们自己生活方式的选择,或是受到成长经历的影响。然而斯瓦柏教授对“人们主宰自己的大脑”并不认可。相反,这名脑科医生认为,抽烟和人工合成的荷尔蒙会增加女孩成为同性恋或双性恋的概率。不良的生活习惯,如在怀孕时喝酒、吸毒,也会降低孩子的智商。

在这本饱受争议的书中,他写到,孕期一个小小的化学变化就会影响大脑的发育。他同时指出:“孕期压力大的女性也容易生出具有同性恋倾向的宝宝,因为她们的荷尔蒙皮质醇会升高,从而影响到腹中的宝宝。”过去有研究显示,为避免流产,在1939年到1960年间使用了人工雌激素的准妈妈生出的女孩有很大一部分可能成为同性恋或双性恋。


Women who smoke during pregnancy could increase the likelihood of their child being gay, according to a neurobiologist.

The sexuality of an unborn child is influenced by the lifestyle led by its mother, Professor Dick Swaab writes in his new book.

The 69 year-old scientist at the University of Amsterdam believes that heterosexuality or homosexuality is determined in the womb.

For decades, debate has raged over the origins of sexual orientation with some arguing it is a lifestyle choice or influenced by upbringing.

But in 'We Are Our Brains', Prof. Swaab firmly states there is "no proof of this whatsoever".

Instead, the brain doctor suggests smoking and synthetic hormones can increase the likelihood of girls being lesbian or bisexual.

Poor lifestyle choices such as drinking alcohol or taking drugs while pregnant can lower a child's IQ, claims Prof. Swaab.


He writes in the controversial book that brain development during pregnancy is altered by the tiniest chemical changes.

And if a woman has given birth to older brothers the chances of her baby being gay is greater.

Prof Swaab writes in his book: "Pre-birth exposure to nicotine or amphetamines also increases the likelihood of lesbian daughters.

"Pregnant women suffering from stress are also more likely to give birth to homosexual children, because their raised levels of the stress hormone cortisol affect the production of fetal sex hormones.

"The more older brothers a boy has, the greater the chance that he will be homosexual.

"This is due to a mother’s immune response to male substances produced by boy babies in the womb, a response that becomes stronger with each pregnancy."

Past studies of women who took synthetic oestrogen between 1939 and 1960 to reduce the harrowing prospect of a miscarriage had a greater chance of having daughters who were bisexual or lesbian.(Mirror News)


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