Here is a 1hr presentation by Dr Davis in Melbourne AUSTRALIA in Nov 2015. This is a very informative presentation that we should all watch and learn.
Wireless radiation has been proven to cause many medical problems but for many reasons the regulatory agencies in the US, Canada, and other countries have not been able to decrease the the allowable levels.
Please grab a tea or coffee and watch and learn.
by John P. Thomas
Health Impact News
Public attention about 5G has been focused on the plans of telecom companies to install millions of small cell towers on electric utility poles, on public buildings and schools, on bus stop shelters, in public parks, and anywhere they want in national parks and on federally owned land.
In local urban communities there would be a cell tower approximately every 500 feet along every street.
As bad as these small cell towers might seem from the standpoint of constant exposure to radio frequency (RF) radiation in close proximity to the source, perhaps an even more alarming prospect will be the beaming of millimeter length microwaves at the earth from thousands of new communication satellites.
The FCC gave approval to SpaceX on March 29, 2018, to launch 4,425 satellites into low orbit around the Earth. 
The total number of satellites that is expected to be put into low and high orbit by several companies will be 20,000 satellites. 
5G will use Phased Array Antennas to shoot Beams of Radiation at Cell Phones
See full article at
FCC chairman TOM WHEELER says that the 5G rollout is important because it will make America Great Again and allow American companies to be very very profitable. He has nothing to say or prove that 5G is safe.