It's interesting to hear that we can use our body to send Emails if your internet connection is unavailable, right? I read this in a magazine first that this has already been tested in Korea University, Seoul. They transmitted data through human arm at a speed of 10 Mbps while testing. This has been done by placing two electrodes 1 feet apart on his skin.While searching more about this, i understood that the electrodes that used to research is a thin silicon material that has a capability of bending 90 degree angle 700,000 times. yes, they can send electromagnetic waves by means of wireless transmission through our body.