Electromagnetic radiation emitted by a mobile telephone may damage sperm cells in men?¯s testicles, reported by a study chaired by Prof. ZHANG Yuanzhen, who is working for the Zhongnan hospital, affiliated to Wuhan University.

Using a male mouse model under electromagnetic radiation, researchers found that a 1400|ìW?¤cm-2 group showed a noticeably reduced activity of LDH-X, when the mobile phone pulse was set between 600?-210 0|ìW?¤cm-2, and a frequency between 800?-1900MHZ. In addition, researchers observed clear mitochondria abnormality in sperm tails in a supermicro structure, marking different sizes and uneven distributions, plus some swelling and unusually low density. However, researchers found no abnormality in the 570|ìW?¤cm-2 group that was set at a range lower than 600|ìW?¤cm-2.

Researchers told reporters that mobile phone?¯s effect on human reproduction system has never been reported before this, though many studies revealed mobile phone?¯s impacts on brain activities, central nerve system, and oncogenesis. Prof. ZHANG believes that experiments have demonstrated mobile telephone affecting spermatogenous cells?¯ energy metabolism, in particular that of sperm, and making them produce reproductive toxicity, through electromagnetic radiation effects on mitochondria. He added, however, further studies are needed to know the implications of such damage on pregnancy and fetus development.