tumors, while psychologists have warned it could also be linked to poor mental health, attention and sleep in teenagers.
The California guidelines warn against close contact when phones have two or fewer bars of signal, when moving in a car, or if you’re trying to receive or send large quantities of data.
Instead of leaning your head on your phone or sleeping with the phone in your bed, the study also suggests using headsets, sleeping with your phone away from you like on a nightstand or across the room and carrying them in a bag instead of in your pocket.