The concept behind radionics originated with two books published by American physician Albert Abrams in 1909 and 1910.[4] Over the next decade, Abrams became a millionaire by leasing EMT machines, which he designed himself.[2] This so-called treatment contradicts the principles of physics and biology and therefore is widely considered pseudoscientific.[5] The United States Food and Drug Administration does not recognize any legitimate medical use for radionic devices.[2][5][6]