The more often a man reaches for his mobile phone, the lower the quality of his sperm, according to a Swiss study.
Men who use their mobile phones more than 20 times a day have a fifth fewer sperm per millilitre 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. ...