Kaya Holdings, Inc. (OTCQB:KAYS) Criticizes FDA Rejection of MDMA Therapy for PTSD, Proposes Psilocybin as Alternative Treatment StockTitansource Post navigation Americans' Interest in Microdosing Psychedelics Is Growing – U.S. News & World ReportHow psychedelic drugs alter the brain – National Institutes of Health (NIH) (.gov)