Podbit · On Purpose with Jay Shetty
The inner critic can drive you to extraordinary success. Then it can kill you. Riz Ahmed and Jay Shetty discuss how elite athletes toggle between the critic — who makes every point feel like everything — and the cheerleader, who can release that point immediately after it's over.
Brian Johnson drained his son's blood plasma to inject into himself and wears an umbrella from the sun — but he also publishes all his biohacking data transparently. Matt McCusker coins the term 'healthy vamp' and admits he respects the hustle even if the optics are terrible.
Mainstream oncology has operated on the wrong theory for 100 years. Cancer is not primarily a genetic disease driven by DNA mutations — it is a mitochondrial metabolic disease. When mitochondria become chronically damaged, cells fall back on ancient, oxygen-independent fermentation pathways, triggering the dysregulated cell growth we call cancer.
Dozens of completely different agents — carcinogens, viruses, chronic inflammation, sleep apnea, radiation — all produce cancer. The paradox is how. The answer: they all damage the same thing. Every single cancer-causing agent chronically impairs mitochondrial oxidative phosphorylation, forcing cells into fermentation and dysregulated growth.
Under an electron microscope, cancer cells reveal ghost mitochondria — shells with nothing inside, or grotesquely deformed inner structures. Every cancer cell ever examined shows defects in the number, structure, and function of its mitochondria. Structure determines function: if the organelle is broken, it cannot produce energy properly.
Cancer cells cannot burn fat or ketones because their mitochondria are broken. They can only survive on two fuels: glucose (sugar) and glutamine (the most abundant amino acid in the bloodstream). This is why metabolic therapy targets both simultaneously — restrict glucose with ketosis, then target glutamine with repurposed drugs.
Niger, Gambia, and Nepal have almost no cancer. Australia, New Zealand, and the US have the most. The difference is modern lifestyle — processed carbs, inactivity, stress, and toxic chemicals constantly damaging mitochondria. Wolves in the wild almost never get cancer. Domestic dogs die from it. Same biology, different environment.
The Glucose Ketone Index divides blood glucose (converted to mmol/L) by blood ketone level. A low number means your cells are burning fat efficiently — like Paleolithic man. A high number means you are in the 'red zone' of chronic disease risk. You can measure it yourself with a $30 finger-prick device.
When cancer patients enter nutritional ketosis before chemotherapy, tumour cells lose their metabolic shield — the lactic acid and succinic acid waste that normally protects them. The result: far lower doses of chemo achieve much greater effect, while healthy cells are protected by their ability to slow down. Istanbul clinics are already doing this with pancreatic cancer patients surviving 4–5 years.
Stem cell tumours cannot metastasize. The cells that spread are different: hybrid cells formed when immune macrophages fuse with tumour stem cells. These hybrids are programmed to roam the body — and they are glutamine-driven. Target their glutamine supply and you can intercept metastatic cancer where it travels.
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