I hear them too.

Tooth fillings and bone conduction could pick up AM signals, because of the nature of AM.

I am sure I cannot appreciate music as well, in fact I have sold almost all my high end audio gear, but I will take the lack of high-frequency sounds in everyday life over slightly better range when listening to music.

You just tune the AM demodulator off center from the FM signal. This is called slope detection. If you have an SDR you can play around with this. Here's an article on slope detection [1].

I think this only works if the bandwidth of the AM detector is fairly small compared to the FM signal. I have no idea what the bandwidth of tooth filling receivers is.

[1] http://www.radio-electronics.com/info/rf-technology-design/f...

I go out of my way to find amperage controlled LED fixtures because they seem to be the only light source that doesn't hum.

Worse are those ultrasonic occupancy sensors. In some spots i the room I can hear a really high pitched buzzing noise. I think it has to with beat frequencies and the caps they use to step up the frequency internally.

I have more sympathy for people with Morgellons than for the electro-sensitives (apart from the fantastic amounts of stigma about mental illness they generate - both from people looking in but also from themselves.)

The fibres didn't match any of the 85,000 organic substances they had on their files. "I was both shocked and not shocked," recalls Wymore. "I already thought these fibres were kind of unusual, and this just validated it."

Wymore has now been working on the DNA of the fibres for five years. So far, none of the samples he has sent into the laboratory has proved to be anything mysterious. Results have included nylon, cotton, a human hair, a fungal fibre and a rodent hair.

The author moves on to another "expert" without pressing Wymore for either the status of the non-matches or an explanation of why human hair was not part of their 85,000-large library.

Are you sure they don't simply emit 20+ kHz sound?

[1] https://en.wikipedia.org/wiki/Coil_noise

They do. Sorry, didn't mean to imply high metal content in the inner was responsible for both phenomena. Was just trying to give the benefit of the doubt to these people's claims; it sort of bothers me when "science" is quick to dismiss people's claims. I'm sure a lot of people would call me (us) crazy for thinking we can hear such a high pitch - but since it's kind of unimportant trivia, like being able to roll your tongue, it doesn't matter. If hearing the high pitch was the cause of great suffering, being called crazy to think that was the cause would hurt a great deal more, I imagine.

This does not lessen the problems or make them less real, but it suggests the treatment looks more like treating a thin person convinced he is fat, than like treating allergies, for example.

By the way, the ability to hear CRTs is common among young people with good hearing. Many switched PSUs make high pitched noises too, for example. Nosie pollution is quite a problem, and there's been studies that suggests links between noise even slightly in the ultrasound and stress levels.