Aaron Hartman, MDFunctional Medicine Specialist | Clinical Researcher

Unlocking the Secrets of Hyperbaric Therapy | HBOT

14 May 2025 · 1 min

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Aaron Hartman, MD explains how hyperbaric oxygen therapy works at different pressures. Most therapeutic effects happen around 1.5-1.75 atmospheres with pure oxygen, while brain injuries like stroke and TBI need closer to 2.0 atmospheres. Even soft chambers at 1.3 atmospheres increase cellular oxygen by roughly 400%.

Questions this video answers

1.5 and 1.75 atmospheres.

Closer to 2.0 atmospheres.

Yes — soft chambers that go to 1.3 atmospheres still provide benefit.

About 400% (at the cell level).

Chapters

So we do have data that it can actually change blood flow even at a super low pressure. But the devil's in the details. You know, you get the therapeutic effect, the big therapy effect, when you're diving 1.5 and 1.75 with 100% oxygen. If you have acute brain injury, acute stroke, acute TBI kind of thing, concussion, you do need to get closer to 2.0 atmospheres. You just need a bigger pressure. For chronic issues, using 1.5 to 1.75 can be helpful. But you do get a benefit with the soft chambers that go to 1.3. Again, the devil's in the details. When you do dive at 1.3, you're increasing the auction at the Mycon. At the cell level, we talked about about 400%. So it's a big increase, but it's not 1, 600 or 200%, which is what you get with the higher numbers.