It's no secret that cell phones emit electromagnetic radiation, but is it harmful? The CDC says there's no proof of harm. But the World Health Organization's International Agency for Research on Cancer calls the radiation "possibly carcinogenic to humans," and recent research - including an ominous 2009 Journal of Clinical Oncology study - have drawn similar conclusions.
In light of growing worries about cell phone safety, Dr. Devra Davis - the author of Disconnect: The Truth about Cell Phone Radiation, What the Industry Is Doing to Hide It, and How to Protect Your Family - says it makes sense to limit exposure to cell phone radiation. Unfortunately, she says, many cell phone users make dumb mistakes that boost their exposure. Keep clicking to see eight big ones...