An 11-year long UK study, encompassing 31 research projects worth $22.4 million (£13.6 million), produced a report which concludes that cell phone usage has no reported health effects, busting decades-old myths about wireless signals making us sick. The 60-page long report describes it has found “no evidence” that exposure to mobile network emissions during pregnancy increases the risk of developing cancer in early childhood, or that use of mobile phones can result in risk of leukemia.
We couldn't find anything about our favorite myth of all, which said that cell phones sitting in our pockets basically microwaved our private parts. However, we're now led to believe that they are safe from invisible harm as well.
Still, the report doesn't explicitly state that mobile users are entirely safe. The report ends by recommending further studying of possible impacts of mobile phone usage on kids, as well as potential adverse reflections on sleep and brain function. Thus, the research will continue with another long-term study, investigating whether there are any delayed adverse effects of mobile phone usage, which could become apparent only after years.
For the scientifically-inclined, the full report is available in the links below.