While, in theory, using a cell phone or other wireless device could interfere with the functions of an airliner, it’s not likely. Communication systems onboard planes have been shielded from electromagnetic interference since the 1960s.
The real reason why you can’t use your cell phone on a plane has much more to do with their impact on cell phone towers. If you’re flying at 35,000 feet, your cell phone’s signals could reach hundreds of towers at once, and cell phone companies are not set up to handle this type of roaming agreement.
That said, if you’re a frequent flyer you should be counting your lucky stars that cell phone use is currently prohibited on flights -- and not because you don’t have to suffer through other passengers’ loud personal calls, either!
Quoted from Dr. Mercola's Newsletter.
