Dennis McKenna sits down with journalist Mattha Busby to discuss the evolving world of psychedelics, including ayahuasca, ibogaine, 5-MeO-DMT, coca policy, drug reform, and the risks and realities behind psychedelic retreats and clinics. Mattha shares stories from the front lines of psychedelic journalism and reflects on the cultural, scientific, and political forces shaping the future of consciousness research. - - - Mattha Busby is a freelance journalist who has covered drug policy, psychedelics, culture and society for VICE, WIRED, Rolling Stone, The Guardian, LA Times and Esquire. He is the author of two slim volume books, Should All Drugs Be Legalized? (Thames & Hudson, 2022) and Psychedelics: A Pocket Primer (Hoxton Mini Press, 2025). He is represented by literary agents Aevitas Creative and is currently working on his first novel. He has also given keynotes on psychedelic culture on both sides of the Atlantic. Learn more about your ad choices. Visit megaphone.fm/adchoices

In this rich and thought-provoking conversation, Dennis McKenna speaks with philosopher Mandi Astola about Terence McKenna, psychedelics, epistemology, shamanism, and the nature of knowledge. Together they explore how psychedelic experiences can produce both genuine insight and dangerous overconfidence, why intellectual humility matters, and how science and shamanic ways of knowing can complement each other. The discussion also touches on the “Stoned Ape” theory, the Timewave, the trickster archetype, and the role of psychedelics as tools for understanding reality, consciousness, and human evolution. A fascinating dialogue for anyone interested in philosophy, altered states, ethics, and the limits of what we know. - - - Mandi Astola is a philosopher specializing in epistemology, ethics and ethics of technology. She is assistant professor at Delft University of Technology's philosophy section.  In particular, Mandi's work focuses on character and what features of character make someone a good person, or a good thinker. She is also part of a project, involving multiple universities, that investigates the contribution that various disciplines in the arts can make to ethical reflection on new technologies. Learn more about your ad choices. Visit megaphone.fm/adchoices

Join Dennis McKenna and Viktor Wynd for a fascinating conversation on dark fairy tales, strange museum curiosities, Papua New Guinea, storytelling, collecting, and the hidden intelligence of nature. Viktor Wynd, writer, artist, and founder of the Museum of Curiosities, shares stories from his travels, his love of folklore, and his perspective on art, books, and the living world. For viewers interested in folklore, ethnobotany, consciousness, rare books, oddities, and the intersection of science, spirit, and wonder. - - - Viktor Wynd is a writer, artist, and the proprietor of the eponymous Museum of Curiosities, Fine Art and UnNatural History in London. He regularly leads expeditions to Papua New Guinea, the Congo and beyond, taking small groups with him via his boutique travel agency Gone with the Wynd. He is the author of Viktor Wynd's Cabinet of Wonders and The UnNatural History Museum, both published by Prestel. Learn more about your ad choices. Visit megaphone.fm/adchoices

Legal Disclaimer: The following content explores the chemistry and history of psychoactive plants for educational research. No Medical Claims: The Brainforest Café Podcast and Dennis McKenna do not make any claims regarding the health benefits or safety of the substances discussed. Any statements made by the guest regarding physical effects or health outcomes are personal anecdotes and should not be interpreted as medical advice. Safety & Legality: This conversation includes theoretical discussions on chemical synthesis. We do not encourage illegal activities or the handling of potentially toxic compounds (such as Ergot fungi). Please adhere to all local laws and regulations. - - - Chemist Matthew Stahl shares with Dennis McKenna his discovery that ancient Eleusinian kykeon likely used barley infected with a safe fungus, mixed with young barley's natural plant compounds under mild acid to transform a mild substance into a powerful, LSD-like visionary brew with no nausea. - - - Matthew Stahl learned Lab chemistry while attending Texas A&M University and Texas Lutheran University for 4 years at Texas A&M University and 2 years at Texas Lutheran University. He has worked in the Automotive production industry for 32 years, in the quality department, with chemistry, to achieve enhanced safety and better performance. Matthew Stahl has read at least 200 books on psychedelics, numerous papers, and studied psychedelics for around 24 years. Learn more about your ad choices. Visit megaphone.fm/adchoices

Join Dennis McKenna in this insightful conversation with Rebecca Lazarou as they explore the urgent need to preserve ancestral medicinal plant knowledge, the role of ethnopharmacology, and how traditional herbal wisdom can be protected for future generations. Rebecca shares the story behind her PhD research on Cypriot medicinal plants and her mission to document at-risk ethnobotanical knowledge before it disappears. They also discuss citizen science, cultural heritage, biodiversity, and the connection between science and traditional healing. - - - IMPORTANT NOTICE: Due to unforeseen circumstances the activities for Rebecca's event in London has now shifted. The date and location will be the same, and it will still be a highly educational event but it will now be a more intimate home herbalism medicine making workshop. Participants will learn all about medicinal plants, the medical system, and will be making their own teas to take home with herbs focused on mental health and stress. Rebecca will also talk about ethnobotany, have a herbal tea bar, and all proceeds still go towards supporting her research. - - - Rebecca Lazarou’s work is an ecology of different disciplines spanning across medical science, ethnopharmacology, herbalism, holistic healthcare, cannabis and psychedelics. She is also an activist, writer, speaker and herbal formulator. She is currently a PhD candidate at Kew Gardens and UCL School of Pharmacy with a focus on ethnopharmacology and herbal medicines. She was the science and managing editor for the ESPD55 volume, is currently co-editor for education charity Herbal Reality and founded Laz The Plant Scientist to bring quality, sustainably sourced herbal medicines and education to people. She is passionate about democratizing knowledge, and rekindling ethnobotany and herbalism from being marginalised disciplines to part of common knowledge again. Ultimately her aim is to help nurture our relationship with nature through natural medicines, and support our species return back to Earth centred living. She is devoted to science to demystify these topics, but equally I am committed to rekindling the magic, awe and healing we find on our precious Earth. You can read more about her work at rebeccalazarou.com Learn more about your ad choices. Visit megaphone.fm/adchoices

In this episode of Brainforest Café, Dennis McKenna sits down with award-winning filmmaker Greg Hemmings to discuss the transformative power of storytelling and its ability to catalyze social and environmental change. Greg reveals his personal battle with long COVID and how it led to his Rewiring the Muse project, which uses neuroscience and EEG data to track his recovery. The conversation also explores Greg’s diverse film projects, including the sci-fi series Revival, the scripted feature on homelessness What We Dreamed of Then, and the climate documentary The Berg. It further delves into his profound experience using Wachuma in Peru to reorganize his brainwaves and restore the creative energy lost during his struggle with long COVID. - - - Greg Hemmings is an award-winning Canadian filmmaker whose work examines how storytelling can catalyze positive social and environmental change. He is the founder of Hemmings House Pictures, a certified B Corporation that produces documentary, factual, and scripted works for international audiences. Greg’s recent projects explore the intersections of neuroscience, creativity, ecology, and consciousness, with particular interest in how human relationships to nature, including traditional and contemporary research into plant-based knowledge systems, can inform wellbeing and collective resilience. In 2023, he received an honorary doctorate for contributions to the arts and social change. Greg is also a mentor, speaker,  musician, and lifelong student of what helps humans—and the planet—thrive. Learn more about your ad choices. Visit megaphone.fm/adchoices

Dennis McKenna and OpticMystic explore humble, a graphic meditation on openness, self-questioning, books, technology, AI, love, and the ongoing mystery of what it means to be human. - - - OpticMystic a.k.a Hugo Amadeu is just a human fascinated by being alive. He intended to be an astrophysicist or an oceanographer but ended up studying graphic design and becoming a freelancer. He worked on DMT: The Spirit Molecule documentary film by Mitch Schultz, ESPD 50 book and later at the McKenna Academy. Currently, he is working with Namae Ntumae at CWays Home performing all sorts of media wizardry. He is also a sandwriter, musician, writer and terrific dishwasher. A bookworm from early age, his curiosity and passion for reading has made him a sort of accidental philosopher. A trance festival, more than 20 years ago, altered profoundly the course of his life and his hopes for the future. A few, yet, intense psychedelic experiences assured him that there is certainly more to the world than the eyes can see. Devout atheist with a profound feeling for the sacred, he will ignore the gods but embrace the spirits. There is something punk in his approach, an itchiness for authority and a refusal to compromise that arises from earnest questioning. He has written a graphic meditation called “Humble”. An exploration of ideas that reflect on openness, relativity and love as forms of approaching the self and the other(s). Learn more about your ad choices. Visit megaphone.fm/adchoices

In this special crossover episode of Plants of the Gods and Brainforest Café, Dennis McKenna and Mark Plotkin explore sacred plant medicines, psychedelic science, and indigenous wisdom, moving from DMT and ayahuasca to virola snuffs, salvia, ibogaine, and beyond. Originally recorded for Mark´s Podcast “Plants of the Gods”, this rich conversation on ethnobotany, shamanic healing, and the future of psychedelic medicine is now being released as a special crossover on both shows. - - - Dr. Mark Plotkin is a renowned ethnobotanist who has spent more than four decades working alongside Indigenous communities of the Amazon to document and protect traditional plant knowledge. He is President and co-founder of the Amazon Conservation Team (ACT), a nonprofit he launched in 1996 with fellow conservationist and his wife, Liliana Madrigal, to support Indigenous stewardship of tropical forests and biocultural knowledge. Dr. Plotkin is also the host of Plants of the Gods, a popular podcast exploring hallucinogenic plants and fungi and their powerful influence on world culture, religion, and healing. He is the author of several widely read books on ethnobotany and conservation and has shared his work through a TED Talk and lectures around the world. Dr. Plotkin was educated at Harvard, Yale, and Tufts University. Learn more about your ad choices. Visit megaphone.fm/adchoices

Ethnobiologist Michael Coe returns to Brainforest Café with a special mission: to turn the spotlight onto Dennis McKenna’s lifelong dedication to ayahuasca, visionary plants, and ethnopharmacology. In this intimate conversation, Michael honors Dennis’ 54 years in the psychedelic space, from early fieldwork in the Amazon to pioneering biochemical and pharmacological research on plant medicines. The discussion explores the importance of mentorship, with Dennis now seeing his primary role as supporting a new generation of ethnobiologists like Michael and their work with indigenous communities and threatened medicinal plant traditions. Together, they discuss standing on the shoulders of giants, the challenges of academia and funding, and why following what “puts fire in your belly” matters more than chasing titles. - - - Michael Coe is an ethnobiologist and applied ecologist with a Ph.D. in Evolution, Ecology, and Conservation Biology. As an Assistant Professor at Tarleton State University, his teaching and research focuses on the relationships between humans, ecosystems, and traditional knowledge systems. Passionate about biodiversity and the sustainable management of natural resources, Michael brings a dynamic interdisciplinary perspective, helping to integrate contemporary ethnobiology and ecology with traditional ecological practices to inform sustainable use strategies, conservation priorities, and global medicine security. Michael is the principal investigator (PI) for the COE LAB where they are conducting hypothesis driven research in ethnobiology and harvest impact assessments on medicinal plants that serve as a primary source of healthcare for over 80% of the world's population. Michael is also the Director for Research and Education for the Pacha Nishi project, a Shipibo-Konibo led effort in the Peruvian Amazon basin seeking to restore 20ha. of degraded land in an agroforestry setting with a primary goal to inform sustainable ayahuasca production in the area as locally sourced sustainably grown medicine. Learn more about your ad choices. Visit megaphone.fm/adchoices

Discover Una Meistere’s journey from Soviet-era Latvia to becoming a bridge between indigenous plant medicines, psychedelic science, art, and Baltic traditions in this in-depth conversation with ethnobotanist Dennis McKenna. They explore ayahuasca, psilocybin mushrooms in Latvia, Amanita muscaria, and ancient sauna rituals as a kind of “Latvian ayahuasca,” touching on symbiosis with nature and how psychedelic experiences can help heal our disconnection from the natural world. ​ Una shares how synchronicities led her from journalism to co-founding Arterritory, Spiriterritory, and the NGO Veseliba Latvija, and to organizing the first psychedelic science conferences in Latvia together with the University of Latvia. The discussion dives into stigma, legal grey zones, human rights to psychedelic-assisted therapies, and the Baltic region’s emerging role in the global psychedelic renaissance. Learn more about your ad choices. Visit megaphone.fm/adchoices