TThe Diary of a CEO
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Peak Performance

Weekly Comfortable Breath-Hold Baseline

Average comfortable breath holds to track a personal breathing baseline

Difficulty
Starter
Time to result
~weeks to results
Steps
5
Confidence
95%

This protocol measures a comfortable breath-hold baseline rather than maximum willpower. After settling, take an ordinary inhale and allow the exhale to end at its neutral point without forcing out extra air. Start timing there. End the hold at the first unmistakable sign that the body wants to breathe, such as a swallow, gentle diaphragm movement, or pressure at the back of the throat. Resume breathing calmly; a recovery gasp indicates that the hold went too far. Nestor warns against interpreting a single reading because sleep, meals, time of day, and current condition can change it. His proposed baseline is the average of readings taken morning, noon, and night over a week. The number is for personal tracking, not competition or diagnosis.

Origin

Extracted from The Diary of a CEO

Core principles

  • 01Measure the first clear urge to breathe, not a maximum hold
  • 02Begin after a calm exhale reaches its natural stopping point
  • 03Return to breathing without a recovery gasp
  • 04Treat one result as noisy rather than definitive
  • 05Average repeated measurements before judging the baseline

How to run it

  1. 1

    Settle before measuring

    Sit quietly and breathe normally. Avoid preparing with an unusually large inhale.

    Pro tip Do not announce the exact start in advance if that makes you unconsciously alter the breath.

    Watch out Do not perform the test in water, while driving, or anywhere a brief loss of control would be dangerous.

  2. 2

    Find neutral

    Take a calm breath in, then let the air out until the exhale stops naturally. Do not squeeze out additional air.

  3. 3

    Time the comfortable hold

    Start the timer at the neutral pause. Stop at the first clear resistance, swallow, gentle diaphragm movement, or pressure.

    Pro tip Honesty makes the trend more useful than a longer number does.

    Watch out This is not a maximum breath-hold test.

  4. 4

    Check the recovery

    Resume normal breathing. If you need a large recovery breath, shorten the next attempt.

    Watch out Stop and seek appropriate advice if breath holding produces concerning symptoms.

  5. 5

    Build the weekly baseline

    Record morning, midday, and evening readings for seven days, then average them. Compare future averages rather than isolated highs or lows.

    Pro tip Note sleep or meals if you want context for unusual readings.

    Watch out Do not use the score to diagnose a medical condition.

In the wild

Illustrative seven-day baseline

A recreational athlete records three comfortable holds each day. Instead of celebrating the longest hold, they average all 21 readings and note that the shortest ones followed poor sleep, giving them a stable starting point for later comparison.

The athlete gets a repeatable personal trend without converting the exercise into a maximum-hold contest.

Common mistakes

Holding through discomfort

Pushing beyond the first clear urge measures tolerance for strain rather than the protocol Nestor describes.

Judging one reading

Nestor says the result varies with sleep, food, and time of day, so one number is not a dependable baseline.

Is it for you?

Best for

Healthy adults who want a simple personal baseline for a breathing practice.

Not ideal for

Anyone for whom breath holding is medically contraindicated or who experiences concerning symptoms during the test.

From the transcript

this is not a maximum breath hold test

James Nestor · (1:29:30)

this test is just to tune in to how your body is responding

James Nestor · (1:32:00)

after a week of recording that number you average it

James Nestor · (1:32:00)

From the episode

The Breathing Expert: Breathing Through Your Mouth Can Cause ADHD, Diabetes & Child Sickness! (Must Listen): James Nestor