Lest the danger (or non-danger) of cellphone use stray too far from your mind, here's a trio of recent studies to get the juices flowing again. First, the best news: an Australian researcher has come up with a five-point ranking system to lay out the likelihood of getting cancer from partaking in various substances and activities, and if that system has any basis in reality, cellphones are "unlikely" to cause cancer -- so take it for what you will. The second study, thrown down by the Cleveland Clinic, showed a significant decrease in sperm "quality" (as determined by a number of stats) as average daily cellphone usage increased; not necessarily a short-term problem for the users themselves, but a finding their future children (or lack thereof) might take issue with. The third study brings more bad news, showing that human skin exposed to cellphone radiation altered the cells' protein expression, a potential (though by no means definitive) precursor to cancer. As always, your mileage -- and your body's mileage -- may vary.
Read - "Cell Phones No Cancer Risk, Study Says"
Read - "Effect of cell phone usage on semen analysis in men attending infertility clinic: an observational study" [Warning: PDF link]
Read - "Mobile phone radiation might alter protein expression in human skin"