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a new study shows that having a mobile phone close to the testicles - or within a foot or two of the body - can lower 1 levels so much that conceiving could be difficult.
一项最新研究表明，手机的存放位置若靠近睾丸，或者在身体的一两英尺（1英尺=0.3米）之内，都将极大地降低精子质量，甚至威胁到生育能力。
the findings have led to a leading british fertility expert to advise men to stop being 2 to mobile phones.
the study - by highly respected specialists - found that sperm levels of men who kept their phones in their pocket during the day were seriously 3 in 47 per cent of cases compare to just 11 per cent in the general population.
professor martha dirnfeld, of the technion university in haifa, said: "we analysed the amount of active swimming sperm and the quality and found that it had been reduced.
"we think this is being caused by a heating of the sperm from the phone and by electromagnetic activity."
the team monitored more than 100 men attending a fertility clinic for a year.
they found that besides men keeping their phones close to their groin many 4 on the phone while it was charging and kept it only a few centimetres from their bed.
even keeping the phone on a bedside table appears to raise lower sperm cell counts.
the findings are in the journal reproductive biomedicine and support a long-feared link between dropping fertility rates in men and the prevalent use of 5 phones.
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