I’d been wondering why after shaving my head/face I felt like I was getting a head cold. I think this confirms it. I’m guessing a battery powered razor would cause a weaker field vs. a hard wired one.
Discussion
Hardwire one runs of AC fields and produces AC electric + magnetic fields
Battery powered one runs on DC but produces AC magnetic fields
Maybe you should try this :P

Interesting. Will take a while, but perfect for beard! Thanks.
Hardwire one runs of AC fields and produces AC electric + magnetic fields
Battery powered one runs on DC but produces AC magnetic fields
Maybe you should try a manual trimmer.

