The Tim Ferriss Show

James Nestor — Breathing Protocols to Reboot Your Health

The Tim Ferriss Show with James Nestor 2025-09-30

Summary

James Nestor, author of the bestseller "Breath," shares breathing protocols for fixing sleep and boosting performance. Covers Tummo breathing, the Wim Hof method (with warnings), and how breathwork cured his chronic respiratory issues. Discusses Maurice Daubard, the mysterious 90-year-old who preceded Wim Hof.

Key Points

  • Tummo breathing: ancient Bon Buddhist technique for heat generation
  • Maurice Daubard pioneered cold exposure practices before Wim Hof
  • The Wim Hof method explained, with safety warnings
  • Breathwork can cure chronic respiratory issues
  • Specific protocols for improving sleep quality
  • How nasal breathing differs from mouth breathing for health

Key Moments

Indoor CO2 destroys cognition: test scores drop 50% at triple ambient levels

Nestor found 30-40 years of government studies showing indoor CO2 tanks cognition -- schools see 50% drops in test scores.

"In the hotels that have the big plaques outside that say LEED certified, green certified, that are the most expensive, have by far the worst quality air."

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