DiscoverAyahuasca Podcast with Sam BelievWinning a championship on megadose of mushrooms with Mark Irwin
Winning a championship on megadose of mushrooms with Mark Irwin

Winning a championship on megadose of mushrooms with Mark Irwin

Update: 2025-07-13
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In this episode of Ayahuasca Podcast, host Sam Believ (founder of www.lawayra.com) has a conversation with Mark “The Shark” Irwin — former bare-knuckle boxing world champion turned psychedelic mental health advocate. Known for fighting on heroic doses of psilocybin, Mark now leads a nonprofit supporting athletes recovering from traumatic brain injuries through psychedelic therapy.


We touch upon topics of:



  • Mark’s story and fighting career journey (00:03:00 )

  • Microdosing and traumatic brain injury recovery (00:04:00 )

  • Fighting competitively on psilocybin (00:05:00 )

  • Flow state and performance enhancement through psychedelics (00:07:00 )

  • Legality and controversy around psychedelics in sports (00:09:00 )

  • Intentions and different uses of plant medicine (00:10:00 )

  • Psilocybin tolerance and intentional usage (00:11:00 )

  • Boxing, childhood trauma, and emotional release (00:13:00 )

  • The therapeutic use of psychedelics for brain healing (00:15:00 )

  • Mental health, masculinity, and emotional expression (00:20:00 )

  • Psychedelics and ego dissolution (00:29:00 )

  • Suicidal ideation, healing, and hope (00:33:00 )

  • Recovery protocols: red light, HBOT, integration (00:38:00 )

  • Future vision: healing others post-fighting (00:40:00 )

  • Movement, fitness, and somatic integration (00:42:00 )

  • Athletes Journey Home nonprofit & fundraising (00:44:00 )


If you would like to attend one of our Ayahuasca retreats go to www.lawayra.com


Find more about Mark Irwin at www.athletesjourneyhome.com or on Instagram @markthesharkirwin

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Winning a championship on megadose of mushrooms with Mark Irwin

Winning a championship on megadose of mushrooms with Mark Irwin

Sam Believ