Hydrogen Sulfide Suspended Animation Video
Roth's technique replaces inhaled oxygen with hydrogen sulfide. Normally toxic, hydrogen sulfide has the curious ability to alter the mammalian metabolism when applied in a cold environment. Using this technique, Roth has already managed to place lab animals into suspended animation, and safely bring them back. When in a suspended state, the body can better cope with the deadly oxygen deprivation that results from shock, massive blood loss, and heart attacks.