Dive into the mesmerizing world of freediving and the science of how humans are able to dive as deep as they do on one single breath. This featurette is inspired by the documentary The Deepest Breath, which is now on Netflix.

In this video, we uncover the remarkable science behind this sport. Learn about how freedivers hold their breath for astonishing durations, the intricacies of the mammalian dive reflex and the physics behind these breath holds. Join us as we unravel the secrets behind freediving.

The Deepest Breath is the story of a champion freediver and expert safety diver, whose lives seemed fated to converge at the height of their careers. A look at the thrilling rewards — and inescapable risks — of chasing dreams through the depths of the ocean. The Deepest Breath is Now Streaming only on Netflix.

Corrections:
3:29 The action described is an example of pulmonary barotrauma of the ascent, which is sometimes referred to as a type of squeeze. However, pulmonary barotrauma of the descent is more typically known by the phrase "lung squeeze." Both kinds of collapsing and expanding pulmonary barotrauma happen to free divers.

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The Science of Freediving | The Deepest Breath | Netflix
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Bonded by their love of freediving, a record-setting champion and a heroic safety diver try to make history with a remarkable feat, ready to risk it all.