The Ready State Podcast
The Ready State Podcast
Kelly Starrett & Juliet Starrett
How Breathing Shapes Sleep, Stress, Performance, & Longevity | Patrick McKeown
1 hour 56 minutes Posted May 28, 2026 at 7:05 am.
View This Week's Show NotesStart Your 7-Day Trial to Mobility CoachJoin Our Free Weekly Newsletter: The AmbushIn this episode of The Ready State Podcast, breathing expert Patrick McKeown joins Kelly and Juliet Starrett for a mind-expanding conversation about something you do 20,000 times a day but probably haven’t thought deeply about: your breath. From asthma and anxiety to sleep quality, athletic performance, focus, and recovery, Patrick explains why the way you breathe may be quietly shaping nearly every aspect of your health.The conversation dives into the surprising science of CO2 tolerance, why most people are chronically over-breathing, and how simple shifts – like nasal breathing, breath holds, and slowing your exhales – can dramatically change your nervous system and performance. Patrick also breaks down why women experience breathing and sleep differently than men, how poor breathing affects kids’ development and behavior, and why many sleep disorders may be going undiagnosed.Most importantly, this episode is packed with practical tools you can start using immediately – whether you’re trying to sleep better, feel calmer, improve endurance, or simply function better under stress.What You'll Learn in This EpisodeWhy most people are chronically over-breathing and how it impacts stress, sleep, and performanceHow nasal breathing and CO2 tolerance can improve endurance, recovery, and focusThe surprising connection between breathing patterns, anxiety, panic attacks, and nervous system regulationWhy women experience sleep-disordered breathing differently than men, especially during menopauseHow mouth breathing in children may affect sleep, behavior, facial development, and long-term healthKey Highlights:
Intro: Men vs. Women in Breathing & Sleep
Patrick McKeown: Breathing Expert & Founder of Oxygen Advantage
Kelly's History with Asthma & Breathing
Exercise-Induced Asthma & Hyperventilation
The BOLT Score Explained
The Science of CO2 & Oxygen Delivery
Kipchoge’s Closed-Mouth Marathon
Women’s Breathing, Hormones & Sleep
Why Women Get Misdiagnosed in Sleep Studies
The Hidden Sleep Disorder Affecting Women
Breathing Practices for Brain Health
Dysfunctional Breathing & Mental Health
Panic Attacks, CO2 & the Paper Bag
Falling Asleep Faster with Breathwork
Breathing Warmups for Athletes
Mouth Breathing & Facial Development
Children, Sleep & ADHD
Breath Holds, Altitude & Hematocrit
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View This Week's Show NotesStart Your 7-Day Trial to Mobility CoachJoin Our Free Weekly Newsletter: The AmbushIn this episode of The Ready State Podcast, breathing expert Patrick McKeown joins Kelly and Juliet Starrett for a mind-expanding conversation about something you do 20,000 times a day but probably haven’t thought deeply about: your breath. From asthma and anxiety to sleep quality, athletic performance, focus, and recovery, Patrick explains why the way you breathe may be quietly shaping nearly every aspect of your health.The conversation dives into the surprising science of CO2 tolerance, why most people are chronically over-breathing, and how simple shifts – like nasal breathing, breath holds, and slowing your exhales – can dramatically change your nervous system and performance. Patrick also breaks down why women experience breathing and sleep differently than men, how poor breathing affects kids’ development and behavior, and why many sleep disorders may be going undiagnosed.Most importantly, this episode is packed with practical tools you can start using immediately – whether you’re trying to sleep better, feel calmer, improve endurance, or simply function better under stress.What You'll Learn in This EpisodeWhy most people are chronically over-breathing and how it impacts stress, sleep, and performanceHow nasal breathing and CO2 tolerance can improve endurance, recovery, and focusThe surprising connection between breathing patterns, anxiety, panic attacks, and nervous system regulationWhy women experience sleep-disordered breathing differently than men, especially during menopauseHow mouth breathing in children may affect sleep, behavior, facial development, and long-term healthKey Highlights: (0:00) Intro: Men vs. Women in Breathing & Sleep(0:22) Patrick McKeown: Breathing Expert & Founder of Oxygen Advantage(2:46) Kelly's History with Asthma & Breathing(10:39) Exercise-Induced Asthma & Hyperventilation(15:32) The BOLT Score Explained(17:00) The Science of CO2 & Oxygen Delivery(23:59) Kipchoge’s Closed-Mouth Marathon(28:01) Women’s Breathing, Hormones & Sleep(32:21) Why Women Get Misdiagnosed in Sleep Studies(34:46) The Hidden Sleep Disorder Affecting Women(38:07) Breathing Practices for Brain Health(44:31) Dysfunctional Breathing & Mental Health(46:05) Panic Attacks, CO2 & the Paper Bag(1:04:38) Falling Asleep Faster with Breathwork(1:12:54) Breathing Warmups for Athletes(1:20:51) Mouth Breathing & Facial Development(1:33:43) Children, Sleep & ADHD(1:44:55) Breath Holds, Altitude & Hematocrit(1:54:09) Infinite Shelf & Glymphatic BreathingHuge thanks to our sponsors, LMNT and Momentous.