Podbit · On Purpose with Jay Shetty
THC impairs mitochondrial function, causes measurable cognitive and motivational decline, and raises the risk of developing schizophrenia or bipolar disorder by approximately four times. The vaping transition from cigarettes often makes nicotine addiction worse, not better, because nicotine concentrations are dramatically higher.
Where this was said
At 36:00 · chapter starts 35:46
The conversation moves into specific harmful substances, and Palmer is emphatic and specific. THC, the active compound in marijuana, interacts with brain receptors throughout the body, impairs mitochondrial function, causes measurable cognitive and motivational decline, and epidemiological data suggests it increases the risk of developing schizophrenia or bipolar disorder by approximately four times. [1] — Dr. Chris Palmer "THC impairs mitochondrial function, causes measurable cognitive and motivational decline, and raises the risk of developing schizophrenia o…" 36:00 He uses the image of the unmotivated, unbothered teenage boy in his parents' basement as a clinical illustration, not a moral judgment. On vaping, he makes a nuanced harm-reduction concession — if you are smoking cigarettes and can't stop, switching to vaping is marginally better — but warns that nicotine concentrations in vapes are often stratospherically higher than in cigarettes, deepening addiction. Alcohol, he adds, tells a similar story to THC: not good for brain, not good for metabolic health.
AI nailed Andrew Huberman's vertigo-vs-low-blood-pressure diagnosis because that pattern has been reported millions of times. But every patient's liver is different and data on liver surgeries is scarce worldwide — making solo robot surgery dangerous. The rule is simple: data abundance means AI can help; data scarcity means keep the human in the loop.
Fei-Fei Li's father had liver surgery performed by a da Vinci robot guided by a surgeon. The result: 10 times less blood loss than a typical procedure. This isn't replacement — it's the gold standard of human-machine collaboration, where the human's judgment and the robot's precision combine.
US drug overdose deaths fell from 110,000 to roughly 70,000 — the biggest CDC-recorded single-year drop ever. Men's rates fell 27% in one year, and the steepest decline of all was among 15–24-year-olds, down 37%. The crisis narrative around young men needs to make room for signs of genuine progress.
Kessler thought his grief expertise would protect him. It didn't. When his son David died unexpectedly, he found himself on the floor — and eventually realized that acceptance alone wasn't enough. That unmet need became the sixth stage: finding meaning.
Grief isn't just death — it's any unwanted change. Kessler lectured at Coca-Cola and General Mills not because they had lots of funerals, but because change management is grief management. People who grieve well live well.
Witnessing someone's grief isn't just emotional support — it's an essential act of healing. Kessler argues grief is a severance and connection heals it. But real witnessing has two steps: seeing the pain AND affirming the person's capacity to recover.
Avoiding grief isn't free — it's exhausting. Kessler's beach ball metaphor nails it: pushing a small balloon down is easy, but holding a massive beach ball underwater takes constant, draining energy. Unattended feelings don't disappear; they just consume you.
Most people try to control their environment to avoid triggers. Kessler flips this entirely: triggers aren't problems to manage around — they're a detailed map to your pain and your healing. Every trigger points directly to what needs attention.
Running from pain doesn't leave it behind — it accelerates the chase. Whatever we run from pursues us, and whatever we face transforms us. Both Kessler and Lewis Howes testify to knowing both roads firsthand.
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