Dennis McKenna / JRE 298

Dennis McKenna / JRE 298 Dennis McKenna is an ethnopharmacologist, research pharmacognosist, lecturer and author. Ethnopharmacology is the study of ethnic groups and their use of drugs. Dennis McKenna books on Amazon: https://amzn.to/2Lw24My All of Dennis McKenna’s appearances on The Joe Rogan Experience Books Related to this Episode of The Joe Rogan Experience TV Shows, Series and…