Although the affects of cell phone use on the human body is not altogether known, a recent government funded study, published in the Journal of American Medical Association suggests that cell phones can actually stimulate an increase in brain activity.
The study mapped how electromagnetic radiation from cell phones raises glucose metabolism in the mind, a telltale sign of brain activity. Subjects exposed to cell phone use for 50 minutes showed significant signs of increased glucose metabolism.
This news follows a 2010 study, coordinated by the International Agency for Research on Cancer, which included subjects using cell phones for ten years or longer, and found that 'overall, no increase in risk was observed with the use of mobile phones.'