How is it physically possible for a human to hold their breath for 29 minutes?

Vitomir Maričić achieved this record using a specific technique called an oxygen-assisted breath-hold. Before submerging, he spent ten minutes inhaling pure oxygen, a process known as denitrogenation. This flushed the nitrogen out of his system and saturated his blood plasma and tissues with five times the normal amount of oxygen, creating an internal reservoir that his body could slowly consume while underwater.

Why does the body feel a desperate urge to breathe even when oxygen is present?

The "panic" or burning urge to gasp for air is not actually triggered by a lack of oxygen, but by the buildup of carbon dioxide (CO2) in the bloodstream. As cells burn oxygen, they produce CO2 as a waste product. When CO2 levels hit a certain threshold, sensors in the brain and throat signal the body to exhale and inhale. Elite freedivers must train their nervous systems to remain calm and ignore these "fire alarms" even as their diaphragms begin to contract involuntarily.

What are the physical risks and side effects of pushing the body to these extremes?

Pushing the body to a physiological breaking point can cause significant trauma. Maričić reported a "massive headache" and brain fog that lasted for two days following his 29-minute feat. More seriously, he experienced intestinal bleeding caused by the physical stress of hundreds of involuntary diaphragmatic contractions, where his body was essentially bruising itself from the inside while trying to force an inhalation.

How does buoyancy affect the heavy weights Maričić lifts underwater?

When performing feats like his 300-kilogram underwater squat, Maričić utilizes the laws of physics to manage the load. Due to buoyancy, a steel barbell loses approximately 15 percent of its weight—about 40 kilograms—because of the volume of water it displaces. However, the diver must still contend with water resistance (drag) and the difficulty of maintaining balance in a low-gravity environment while deprived of oxygen.

What is "chunking" and how does it help in extreme endurance?

Chunking is a psychological strategy Maričić uses to manage intense suffering by breaking time into tiny, manageable segments. Instead of focusing on the many minutes remaining in a dive, he asks himself if he can survive just ten more seconds or three more physical contractions. This mental technique shrinks the horizon of the challenge, making an overwhelming ordeal feel doable by focusing only on the immediate future.

The longest breath hold by Vitomir Maričić

25 min

31. März 2026

Psychology Health Personal Development

Staying underwater for 29 minutes seems impossible. Learn how this freediver pushed his body to a physiological breaking point to set a world record.

Bestes Zitat aus The longest breath hold by Vitomir Maričić

That desperate, burning urge to gasp for air? That’s not your brain saying 'we’re out of O2.' It’s actually triggered by the buildup of carbon dioxide, and elite freedivers train their brains to stay calm while the fire alarm is going off at full volume.

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Eingabefrage

The history of the longest breath hold by Croatian freediver Vitomir Maričić

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The longest breath hold by Vitomir Maričić

25 min

31. März 2026

Psychology Health Personal Development

Staying underwater for 29 minutes seems impossible. Learn how this freediver pushed his body to a physiological breaking point to set a world record.

Bestes Zitat aus The longest breath hold by Vitomir Maričić

That desperate, burning urge to gasp for air? That’s not your brain saying 'we’re out of O2.' It’s actually triggered by the buildup of carbon dioxide, and elite freedivers train their brains to stay calm while the fire alarm is going off at full volume.

Kernaussagen

Beyond the Limits of Human Breath

0:00

Eli: You know, Nia, I was just thinking about how most of us start panicking if we have to hold our breath for even sixty seconds. It’s that primal "I need air" reflex, right?

0:09

Nia: Exactly! That’s the body’s natural alarm system. But imagine staying underwater for the entire length of a sitcom episode. Back in June 2025, a Croatian freediver named Vitomir Maričić did exactly that. He stayed submerged in a pool for an incredible 29 minutes and three seconds.

0:28

Eli: Wait, nearly half an hour? That sounds physically impossible for a human being. I mean, even dolphins usually surface way before that!

0:37

Nia: It really is otherworldly. He actually shattered the previous world record by nearly five minutes. But as he described it, the experience was a "horrible" ordeal that pushed his body to a physiological breaking point. Let’s explore how he prepared his lungs and mind for this record-breaking struggle.

The Science of the Silent Countdown

Building the Vessel for the Void

The Psychological Breakpoint

The Physics of the Underwater Squat

The Evolution of a Modern Human Fish

The Practical Playbook of the Freediver

Final Reflections on the 29-Minute Silence

Diese Audiolektion wurde von einem BeFreed-Community-Mitglied erstellt

Eingabefrage

The history of the longest breath hold by Croatian freediver Vitomir Maričić

Moderatorstimmen

Eli

Nia

Lernstil

Tiefgehend

Wissensquellen

Häufig gestellte Fragen

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Von Columbia University Alumni in San Francisco entwickelt

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@Chloe, Solo founder, LA

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"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

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"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

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"Reading used to feel like a chore. Now it’s just part of my lifestyle."

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"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

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@Jaded_Falcon

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"The themed book list podcasts help me connect ideas across authors—like a guided audio journey."

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"Makes me feel smarter every time before going to work"

@Cashflowbubu

"Instead of endless scrolling, I just hit play on BeFreed. It saves me so much time."

@Moemenn

"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

@Chloe, Solo founder, LA

117

"Perfect balance between learning and entertainment. Finished ‘Thinking, Fast and Slow’ on my commute this week."

@Raaaaaachelw

"Crazy how much I learned while walking the dog. BeFreed = small habits → big gains."

@Matt, YC alum

108

"Reading used to feel like a chore. Now it’s just part of my lifestyle."

@Erin, Investment Banking Associate , NYC

254

"Feels effortless compared to reading. I’ve finished 6 books this month already."

@djmikemoore

"BeFreed turned my guilty doomscrolling into something that feels productive and inspiring."

@Pitiful

4.5K

"BeFreed turned my commute into learning time. 20-min podcasts are perfect for finishing books I never had time for."

@SofiaP

"BeFreed replaced my podcast queue. Imagine Spotify for books — that’s it. 🙌"

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"Makes me feel smarter every time before going to work"

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"I never knew where to start with nonfiction—BeFreed’s book lists turned into podcasts gave me a clear path."

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