Mark Bell's Power Project Sleep, Peptides & the Gut Health | Joel Green Explains What Actually Moves the Needle
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Feb 23, 2026 Joel Greene, health and longevity researcher focused on sleep, mitochondria, and the gut microbiome. He discusses why poor sleep worsens with age and why tracking oxygen saturation matters after 50. He warns about peptide and mitochondrial interventions, shares a Super Sleep bedtime approach, and outlines gut-reset tactics to restore Bifidobacteria and Akkermansia using rhythmic pulsing and resistant starch.
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Track O2 Sat After Fifty
- Track oxygen saturation nightly once you hit ~50 because desaturation events under 91% indicate severe sleep-driven aging and recovery deficits.
- Use an O2 sensor ring (Joel Greene recommends the Wellue ring) to see desaturation events, average O2, and guide interventions like mouthpieces or HBOT.
BPC Healed My Shoulder Then Lost Effect
- Joel Greene reports BPC-157 healed his shoulder the first time but stopped working after years of use.
- He framed this as personal experience to explain why interventions can lose effect over time.
Peptides Often Work Then Stop And Carry Unknown Risks
- Peptides can produce dramatic short-term effects but often lose effectiveness over years and carry unknown long-term risks.
- Joel Greene warns mitochondrial peptides and unregulated formulations may cause histamine reactions and unknown cancer risks.