Although some fertility experts are dismissing the findings, a group of Hungarian scientists are claiming to have discovered a correlation between cell phone use and decreased sperm counts in men (sperm counts in women remained at normal levels). While the study only questioned 221 men, and did not take into consideration stress levels and other factors that could effect sperm levels, enough doubt has been cast on the safety of the radios to continue studying the purported condition.
Of course, everyone else basically says cellular radio waves are harmless, but running studies that claim otherwise is, if nothing else, a great way to keep the grants flowing.
Read [Yahoo (Reuters)]