Boston.com / Business / Technology / Long-term health risks remain unclear

Boston.com / Business / Technology / Long-term health risks remain unclear: "Parents should think twice before giving in to a middle-schooler's demands for a cellphone, some scientists say, because potential long-term health risks remain unclear.
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When you use a cellphone, 70 to 80 percent of the energy emitted from the antenna is absorbed by the head, Lai said.
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He also said that because brain tumors usually take 30 to 40 years to develop, children who use cellphones from their teen years onward would have a longer period of time to see a cumulative impact."