Electro Physiological Feedback Xrroid

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Electro Physiological Feedback Xrroid (EPFX)
Alternative medicine
Claims Analysis and adjustment of "frequencies" related to health.
Related fields Energy medicine
Year proposed 1985
Original proponents Bill Nelson
See also Hulda Regehr Clark, List of questionable cancer treatments

Electro Physiological Feedback Xrroid (EPFX), also known as Quantum Xrroid Consciousness Interface (QXCI), is a discredited "energy medicine" device which claims to read the body’s reactivity to various frequencies and then send back other frequencies to make changes in the body.[1][2] It is manufactured and marketed by self-styled "Professor Bill Nelson" also known as Desiré Dubounet.[2] Nelson is currently operating in Hungary, a fugitive from the US following indictment on fraud charges connected to EPFX.[1]

Descriptions of the device in mainstream media note its high price tag ($20,000 US) and the improbable nature of the claims made for it.[3] It has reportedly been used to "treat" a variety of serious diseases including cancer. In one documented case, undiagnosed and untreated leukaemia resulted in the death of a patient.[4]

The website Quackwatch posted an analysis of the device by Stephen Barrett which concludes: "The Quantum Xrroid device is claimed to balance 'bio-energetic' forces that the scientific community does not recognize as real. It mainly reflects skin resistance (how easily low-voltage electric currents from the device pass through the skin), which is not related to the body's health."[5]

Imports to the US are now banned.[6]

See also[edit]


  1. ^ a b Michael J. Berens and Christine Willmsen (November 19, 2007). "How one man's invention is part of a growing worldwide scam that snares the desperately ill". Seattle Times. Retrieved 2008-04-06. 
  2. ^ a b Miracle makers or money takers?, CBC News Marketplace, Feb 27, 2009
  3. ^ Goldacre, Ben (August 9, 2008). "Bill Nelson Wins The Internet". Bad Science. 
  4. ^ "Miracle Machines: The 21st-Century Snake Oil". Seattle Times. December 26, 2008. 
  5. ^ Barrett, Stephen. "Some Notes on the Quantum Xrroid (QXCI) and William C. Nelson". Quackwatch. Retrieved 2007-02-12. 
  6. ^ FDA Takes Action Against Fake Medical Device, NewsInferno.com, 10 August 2009

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