Do you sleep with your phone next to your pillow? Is it going to cook your brain? Don’t lose sleep over it. At night, your phone is probably in standby mode, having short and infrequent contact with its network, says Anke Huss, Ph.D., an environmental epidemiologist at Utrecht University in the Netherlands. Less time with the network means less of the electromagnetic radiation people are worried about. The exposure is very small, “especially in comparison to a phone call,” Huss says. Unlike x-ray radiation, which can damage human cells, the effect of radiation from cellphones aren’t totally understood. But some studies suggest that it might damage cells after prolonged contact. So if you spend most of your day with your phone pressed to your ear, switch to a Bluetooth headset. It minimizes the effect of a cellphone’s electromagnetic field, suggests research published in the journal The Laryngoscope. See more