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Study Finds No Psychological or Cognitive Deficits among Native Americans Who Use Peyote Regularly in Religious Settings

Dr. John Halpern with Shiprock in the background.
Photo of Dr. John Halpern standing with Shiprock in the background.
Sometimes Dr. Halpern would visit with Navajo officials in Lukachukai, AZ, and would travel past this ancient volcanic plug en route from Farmington, NM, where much of his study was completed.
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