Men who use their mobile phones more than 20 times a day have a fifth fewer sperm per millilitre of ejaculate than men who reach for their phones no more than five times a day, researchers from the Swiss Tropical and Public Health Institute and the University of Geneva revealed on Wednesday.
They analysed the sperm of 2,886 men aged 18 to 22 who were recruited between 2005 and 2018, the two institutions announced.
This is the world’s largest study on the subject to date, said study co-author Martin Röösli.
However, according to the study, high mobile phone use had no effect on sperm mobility and morphology. The data also suggest that the location of the phone is not associated with poorer sperm. However, Röösli said further studies were needed to make reliable statements on this.
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