Here is a bit of research that was very recently pointed out to me by a wholesale customer of ours - thanks Louisa!
Watch this video to see how mould (or mold, depending on where you learned English) reacts to the radiation in a laboratory compared to that shielded in a Faraday cage (EMF shielded environment).
The conclusion is somewhat scary and another nail in the coffin of the EMF naysayers. Mould reacts to EMF as if it under attack and generates toxins as a defensive mechanism. This is interesting when it is happening in a Petri dish but what if you have mould in your body?