Strange corners of the internet are awash with chatter about miracle devices that can cure nearly any ailment you can think of using the power of mystical energy. Some companies charge thousands for these "medbeds" - but their claims are far from proven.A converted motel in a small town on the Mississippi River seems an unlikely home for a world-changing technology - what a flyer in the mostly deserted lobby calls a "new wave of scientific healing".But since last summer, this building in East Dubuque, Illinois - three hours west of Chicago - has been outfitted with medical devices that supposedly imbue patients with "life force energy". It's one of a number of locations run by Tesla BioHealing - no relation to the car company - dotted around the US.I tried out a medbed on a recent gloomy weekday afternoon. After being greeted at the front desk, a doctor tested my energy levels by having me place my fingers inside a metal box.Then I was ushered into one of the rooms, mostly unchanged fr...
