isn't your brain getting zapped by the phones wireless signals to some degree anyway...?
Discussion
Wireless signal strength is proportional to 1/distance^n where n varies dependent on terrain/environment.
In the case of airbuds you are at a distance of zero away from the wireless source, which is as bad as it gets.
Same for placing your mobile device in your pocket next to your cojones.
you find a cool bag/backpack yet that holds your phone .3 meters from your body : p?