I take apart bombs, missiles and other explosive ordnance for a living, and sometimes we have to wrap certain components or fuzes in aluminum foil to lower the effects of RF on them for transport. The general rule I follow is if you could put it underwater and water would get in, then radio frequencies won’t be deadened. So if she wants to be protected then she would have to create a watertight seal around her head and do us all a favor.
So many people don’t seem to realize this, even people living here. The amount of people I work with who are shocked that my wife wasn’t granted immediate citizenship and is still going through the process 7 years and two children later is quite high. I like to bring it up when they talk about how easy immigration is in Canada and how we’re being overrun by immigrants.