A team of international researchers has found that cell phone use may have negative effects on the fertility of men. Although the results are still inconclusive, the study has found that male cell phone users have lower quality sperm than those who do not have cell phones. The researchers’ theory is that the electromagnetic waves that cell phones emit increase the number of testosterone-producing cells, but also lower levels of luteinizing hormone. This, in turn, may negatively impact fertility.Learn more from Daily Tech.