Could giving a cell phone to your kid be considered child abuse? Cell phones are widely believed to cause cancer because of the radiofrequency electromagnetic fields they use. Now, a new scientific study published in the journal Electromagnetic Biology and Medicine finds that kids’ brains may absorb much more cellphone radiation as adults’ brains. According to the report, cell phones are currently certified using a model of an adult’s head, which greatly underestimates the radiation absorption rate for a smaller head.