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无线辐射影响男性生育能力

所属:生活杂谈 来源:daily mail 阅读:3581 次 评论:0 条 [我要评论]  [+我要收藏]

小编摘要:随着生活节奏和方式的改变,不孕不育问题开始困扰人们。人们为生活中几乎无处不在的辐射感到恐慌,电脑的无线连接会否影响生育?一起来看看下面这篇报道!

导读:一项研究将男性精液置于通过无线装置连接到因特网的笔记本下面并且让笔记本连续上传和下载四个小时,同时将另一组精液置于相同温度的但无无线信号的环境中进行对照。结果表明,笔记本下的精液25%都停止了活动,9%DNA受到破坏。而对照组只有14%的样本停止活动,3%DNA遭破坏。科学家们认为这是无线连接导致的电磁辐射引起的现象,因此会降低男性的生育能力。然而生殖与泌尿协会的主席罗伯特·奥茨却认为这并不符合实际生活,而是人为设置的实验环境。生活当中人们并不一定真的把笔记本放在腿上用。

Working on a laptop wirelessly may hamper a man’s chances of fatherhood.

In a study, sperm placed under a laptop connected to the internet through wi-fi suffered more damage than that kept at the same temperature but away from the wireless signal.

The finding is important because previous worries about laptops causing infertility have focused on the heat generated by the machines.

In the latest study, researchers took sperm from 29 men aged 26 to 45 and placed them either under a wi-fi connected laptop or away from the computer.

The laptop then uploaded and downloaded information from the internet for four hours.

At the end of the experiment, 25 per cent of the sperm under the laptop had stopped moving and 9 per cent showed DNA damage.

By comparison, just 14 per cent of samples kept away from the wi-fi stopped moving. And just 3 per cent suffered DNA damage, the journal Fertility and Sterility reports.

The wireless connection creates electromagnetic radiation that damages semen, the scientists, from the United States and Argentina, believe.

Lead researcher Conrado Avendano, of Nascentis Medicina Reproductiva in Cordoba, said: ‘Our data suggest that the use of a laptop computer wirelessly connected to the internet and positioned near the male reproductive organs may decrease human sperm quality.

'At present we do not know whether this effect is induced by all laptop computers connected by WiFi to the internet or what use conditions heighten this effect.’

A separate test with a laptop that was on, but not wirelessly connected, found negligible EM radiation from the machine alone.

The findings fuel concerns raised by a few other research teams.

Some have found that radiation from mobile phones creates feeble sperm in the lab, for example.

And last year urologists described how a man sitting with a laptop balanced on his knees can crank up the temperature of his scrotum to levels that aren't good for sperm.

So between the heat and the radiation from today's electronic devices, testicles would seem to be hard-pressed.

However, Dr Robert Oates, the president of the Society for Male Reproduction and Urology, has managed to father two kids despite having both a laptop and an iPad.

He told Reuters Health he doesn't believe laptops are a significant threat to male reproductive health.

Remarking on the new study, he said: ‘This is not real-life biology, this is a completely artificial setting.

'It is scientifically interesting, but to me it doesn't have any human biological relevance.’

He added that so far, no study has ever looked at whether laptop use has any influence on fertility or pregnancy outcomes.

'Suddenly all of this angst is created for real-life actual persons that doesn't have to be,’ said Oates, also of Boston Medical Center.

He added: ‘I don't know how many people use laptops on their laps anyway.’

According to the American Urological Association, nearly one in six couples in the U.S. have trouble conceiving a baby, and about half the time the man is at the root of the problem.

While the impact of modern technology is still murky, lifestyle does matter, researchers say.

Earlier this month, a report in Fertility And Sterility showed that men who eat a diet rich in fruit and grains and low in red meat, alcohol and coffee have a better shot at getting their partner pregnant during fertility treatment.

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2011-12-07 11:17 编辑:lilylikelily
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