What happened in this episode?
Joe Rogan speaks with endurance athlete and sports scientist Ross Edgley about extreme open-water swims and the physiological risks that come with multi-day efforts. Edgley gives a detailed account of a 60-hour Loch Ness swim for ocean conservation, saying he hallucinated and then blacked out due to hypothermia compounded by cellulitis, later waking in hospital. He also describes a hot-water lake swim in Italy during a heatwave, claiming heat stroke and rhabdomyolysis with a reported creatine kinase reading of 19,000.
Edgley discusses training choices behind his unusually muscular build for endurance swimming, arguing that strength and connective-tissue robustness matter in cold, turbulent conditions. He talks about collecting environmental DNA (eDNA) samples around Iceland in collaboration with the University of Iceland, presenting the expedition as a conservation ‘Trojan horse’ alongside research.
The conversation ranges into folklore and psychedelics in Iceland, endurance psychology and brain-based frameworks for pushing through failure, and the role of altitude and heat training. Rogan also veers into broader claims: he argues Somali piracy was driven by toxic dumping and illegal fishing (noting during the show that evidence is disputed), dismisses ADHD as largely overdiagnosed while calling it a ‘superpower’, and alleges US economic incentives discourage peptide and stem-cell therapies. He also repeats a contrarian view on dog neutering and cancer risk, suggesting some veterinary advice is profit-motivated.
