Use a headset. Sounds obvious, but headsets emit much less radiation than cell phones do, according to the Environmental Working Group (EWG), and they keep your cell phone away from your head. The farther away you are from a source of radiation, the less damage it can do.
Text when you can. Your constantly texting teens are onto something: Cell phones use less energy (and emit less radiation) when you text than when you talk, says the EWG. Texting also keeps the radiation source farther away from your brain.
Use cell phones for FYI-only calls. Don't use your cell phone for that long overdue, hour-long catch-up with your sister. Keep calls as short as possible - Do you need me to get the dry cleaning, honey? - and switch to a landline if they're veering off into chitchat territory.
Watch the bars. Can you hear me now? If you're struggling to maintain a connection, ditch the call and wait until you have better service. When your phone has fewer signal bars, it has to work harder (and, therefore, emit more radiation) to connect.
Keep the phone away from your ear when you can. EMF-Health.com recommends waiting for the call to connect before you bring the phone to your ear, which minimizes radiation exposure. And when you talk, tilt the phone away from your ear and bring it in close when you're listening. That's because the radiation levels are "significantly less when a cell phone is receiving signals than when it is transmitting," Lin Zhong, assistant professor of electrical and computer engineering at Rice University in Houston, told The New York Times.
Don't make calls in elevators or cars. You already it's dangerous to talk and drive; EMF-Health.com says that cell phones use more power to establish a connection in enclosed metal spaces like cars and elevators.
Make sure your kids use the landline. It seems like even toddlers are using cell phones today, but experts say kids are the most vulnerable to potential radiation dangers. The EWG says children's brains absorb twice as much cell phone radiation as adults. According to The New York Times, health authorities in Britain, France, Germany, and Russia all have warnings against letting children use cell phones.
Buy a low-radiation phone. Some cell phones emit more radiation than others; if you're in the market for a new phone, EMF-Health.com recommends that you consider the phone's SAR (specific absorption rate), a way of measuring the radiation absorbed by the body. It's usually listed in the phone's instruction manual. You can also look at the EWG's report of cell phone SARs here - from the LG Quantum's 0.35 W/kg on the low end to the Motorala Bravo's 1.59 W/kg on the high end.