Nasal Breathing
Nasal breathing and breathwork science. Why nose breathing matters for sleep, performance, and health. Featuring James Nestor, Patrick McKeown, and Huberman.
Breathing through your nose instead of mouth for nitric oxide production, better oxygen delivery, and improved sleep
Nasal breathing is one of the most underrated health interventions. Your nose isn't just an air filter - it's a nitric oxide factory. Breathing through your nose produces 15-20% of your body's nitric oxide, a molecule that dilates blood vessels, kills pathogens, and improves oxygen delivery to tissues.
The research is clear: mouth breathing is associated with sleep apnea, dental problems, facial development issues in children, and reduced exercise performance. Nasal breathing improves all of these while costing nothing.
If you're breathing through your mouth during the day or sleeping with your mouth open, fixing this is one of the highest-ROI changes you can make. Pairs perfectly with mouth taping for sleep.
Science & Mechanisms
Nitric Oxide Production:
The paranasal sinuses continuously produce nitric oxide (NO). When you breathe through your nose, this NO is carried into the lungs where it: - Dilates blood vessels (vasodilation) - Improves oxygen uptake in alveoli - Kills bacteria, viruses, and fungi - Regulates blood pressure
Mouth breathing bypasses this entirely - you get zero nasal NO.
The Bohr Effect & Oxygen Delivery:
Nasal breathing naturally slows respiration and increases CO2 tolerance. Higher CO2 levels shift the oxygen-hemoglobin dissociation curve rightward (Bohr effect), meaning hemoglobin releases MORE oxygen to tissues.
Paradoxically, breathing less (through your nose) delivers more oxygen than breathing more (through your mouth).
Key Research:
- Lundberg et al. (1995): Discovered high NO concentrations in nasal airways
- Recinto et al. (2017): Nasal breathing during exercise reduced ventilation rate by 22% with equal performance
- Multiple studies link mouth breathing to sleep disordered breathing, dental malocclusion, and reduced quality of life
Mechanisms Summary:
- Nitric oxide delivery - Antimicrobial, vasodilating, bronchodilating
- Air conditioning - Filters particles, humidifies to 95-100%, warms to body temperature
- CO2 retention - Improves oxygen delivery via Bohr effect
- Parasympathetic activation - Nasal airflow stimulates calming nervous system response
- Reduced over-breathing - Prevents chronic hyperventilation
Effect Sizes:
- Nitric oxide: 6x higher concentration in nasal vs. oral breathing
- Exercise efficiency: ~10-20% reduction in ventilation at same workload
- Sleep quality: Significant improvement when mouth breathing corrected
Episodes
Slow, controlled breathing directly reduces anxiety by activating specific neural pathways - this isn't placebo, it's brain circuitry. Box breathing and diaphragmatic techniques...
Mouth breathing causes structural and health problems; nasal breathing filters air and produces nitric oxide. Slow breathing at 5-6 breaths per minute optimizes CO2 tolerance. M...
Dr. Perry Nickelston shares a simple daily breathing ritual designed to calm the nervous system and support the body's healing processes. He breaks down the top three physiologi...
This premium AMA episode focuses on why colds and flus are more prevalent during winter months and practical strategies for prevention. Huberman explains three key factors: incr...
The physiological sigh (double inhale, long exhale) is the fastest way to calm down. Nasal breathing should be your default, and building CO2 tolerance reduces baseline anxiety....
Dr. Andy Galpin explains how to increase control over your nervous system for long-term physiological resilience and adaptability, going beyond basic stress management to explor...
Unlocking Jaw Health joins Ben Greenfield Life to discuss mewing, bioesthetic dentistry, and tongue posture for total wellness life network: raw podcast #6. Key topics include m...
Andrew Huberman provides a comprehensive guide to building a strong, stable, pain-free back and reducing or eliminating existing back pain. He begins with the anatomy and physio...
This is a re-release of the Find Your Daily Calm episode featuring a guided Buteyko reduced breathing exercise with Dr. Charles Edward Florendo, Southeast Asia's first physician...
Aaron Alexander of the Align Podcast interviews Patrick McKeown, author of The Oxygen Advantage, in a wide-ranging conversation that begins with a philosophical discussion about...
Andrew Huberman explains the biology of colds and influenza -- how these viruses are transmitted, how the immune system responds, and evidence-based protocols for prevention and...
Dr. Stephen Park, an ENT physician specializing in obstructive sleep apnea, interviews Patrick McKeown, an internationally renowned Buteyko expert and author. The episode focuse...
Cyclic hyperventilation at the first sign of illness can reduce inflammation and shorten recovery time. Elevating your feet during sleep optimizes the glymphatic system for bett...
Dr. Perry Nickelston highlights the overlooked role of tongue posture and function in chronic pain and nervous system regulation. He explains how the tongue connects directly to...
In this Huberman Lab Essentials episode, Andrew Huberman explains how to optimize testosterone, estrogen, and related sex steroids for fertility and overall well-being. He cover...
Vitamins D & K Plus Nasal Breathing to Change Your Sleep, Airway Health and More. Guest Joel Gould, DDS joins the discussion to share evidence-based insights on this topic, cove...
In this Huberman Lab Essentials episode, Andrew Huberman explores the science of chemical sensing -- how smell, taste, and chemical signals from other humans shape our biology a...
Lucas Rockwood of the Yoga Talk Show (Age Less / Live More) interviews Sasha Yakovleva, executive director of the Breathing Center and a Buteyko breathing normalization expert. ...
Jay Shetty interviews Wim Hof about the intersection of ancient wisdom and modern science behind the Wim Hof Method. Wim shares stories from the Upanishads and Mahabharata to il...
Host Ed Jones of The Holistic Navigator introduces Buteyko breathing to listeners, sharing his personal journey with the technique over several years of working with a Buteyko p...
Host Raphael of the Meditation with Raphael podcast discusses the Buteyko breathing method as a practical technique for managing anxiety. He learned about the method from a book...
Host Dana Kay of the Soaring Child podcast welcomes back Dr. Miles Nichols, a functional medicine expert and founder of the Medicine with Heart Clinic, to discuss how Buteyko br...
Host Shannon Crow of the Connected Yoga Teacher podcast interviews Steve Donald, a Buteyko educator who took the first Buteyko educator training in Canada in 2006. Steve was dra...
Andrew Huberman hosts functional dentist Dr. Staci Whitman for a deep dive into oral health as a pillar of whole-body wellness. They discuss how common oral care products — incl...
Dr. Jay Wiles, Chief Health & Performance Officer at Ohm Health and HRV researcher, joins Chris Williamson for a masterclass on heart rate variability. The episode covers what H...
This episode of Find Your Daily Calm features a guided Buteyko reduced breathing exercise led by Dr. Charles Edward Florendo, Southeast Asia's first and only physician certified...
Andrew Huberman provides a deep dive into oral health, explaining how the mouth serves as a gateway to whole-body health -- with poor oral hygiene linked to increased risk of ca...
Brian Johnson presents a Philosopher's Notes TV book review of Patrick McKeown's The Oxygen Advantage, distilling the book into five key ideas. Brian shares that this book, alon...
Hosts Ariana Rabinovich and Catherine Cowie of the Yoga Research and Beyond podcast take a science-first look at the Buteyko breathing technique, reviewing a 2005 study publishe...
Dave Asprey interviews Brandon Harris, creator of Jawzrsize, a jaw exercise device born from Harris's personal experience recovering from a jaw injury that left him wired shut f...
Your lymphatic system lacks a pump and relies on movement, breathing, and pressure to clear waste. Walk 7,000+ steps daily, do 2-3 rounds of diaphragmatic breathing, and sleep o...
Simon Hill and exercise physiologist Drew Harrisberg unpack practical takeaways from Hill's previous deep-dive with Dr. Inigo San Millan on zone 2 training. The conversation cov...
Dr. Andrew Huberman, neuroscientist and Associate Professor at Stanford University School of Medicine, joins Chris Williamson to share his favorite science-backed tools for opti...
Brian Johnson of the Optimize podcast interviews Patrick McKeown, author of The Oxygen Advantage, in what Brian calls the most life-changing practice he has adopted. Brian share...
Hala Taha interviews Wim Hof about his philosophy, his origin story, and the practical methods behind his extreme cold exposure and breathing techniques. Wim explains how modern...
Build your weekly fitness around 150-200 minutes of zone 2 cardio (conversational pace, nasal breathing) plus strength training. Alternate emphasis every 10-12 weeks. Long zone ...
James Nestor, author of Breath, shares findings from his self-experiment where plugging his nose for 10 days caused blood pressure spikes, fragmented sleep, and cognitive declin...