Field notes

HBOT knowledge base

Hyperbaric oxygen therapy explained: what pressure does, how long a protocol runs, and where the evidence stops. Written inside the clinic, sourced to the research.

Two hyperbaric chambers with soft pink lighting in a dim clinic room

13 October 2026 · Research

What 60 sessions in a hyperbaric chamber did to the sleep of 395 patients

In 395 patients who completed 60 hyperbaric chamber sessions, sleep improved in all three groups. The worse someone slept to begin with, the more it moved.

Control tablet logging oxygen and pressure for a hyperbaric session at Age Back Clinic Stockholm

How many HBOT sessions do you need, and what does each one do?

24 September 2026 · Research

One session at 2.0 ATA roughly doubles circulating stem cells. Twenty raise them eightfold. What the trials say about course length, and why the number is not arbitrary.

Looking into the hyperbaric chamber at Age Back Clinic Stockholm through the window

2.0 ATA vs 1.3 ATA: how much oxygen each hyperbaric pressure actually delivers

16 September 2026 · Research

A 2.0 ATA clinical chamber on 93% oxygen delivers nearly seven times the inspired oxygen pressure of a 1.3 ATA soft-shell chamber on room air.

Hyperbaric chambers inside Age Back Clinic Stockholm

HBOT for athletic recovery: what the bone and joint evidence supports

8 September 2026 · Research

Thirty sessions against a pressure-matched sham eased pain in early femoral head necrosis, and none of the 20 patients needed a hip replacement seven years later. Training soreness is the exception.

Inside the hyperbaric chamber at Age Back Clinic Stockholm, where sessions run at 2.0 ATA

Hyperbaric oxygen for wound healing: which wounds respond

4 September 2026 · Research

One randomized trial closed 52% of chronic diabetic foot ulcers against 29% on placebo. Two later trials found nothing. What separates them is whether the wound was short of oxygen in the first place.

The hyperbaric chamber at Age Back Clinic Stockholm in ambient light

Does HBOT help long COVID? What separates the three trials is dose

19 August 2026 · Research

Three sham-controlled trials, one clearly positive. The trial that ran 40 sessions found moderate gains in cognition, energy, sleep and pain. The two that stopped at ten found nothing.

Exterior of the hyperbaric chamber at Age Back Clinic Stockholm

What actually happens to inflammation under pressure

27 July 2026 · Research

Hyperbaric oxygen is often described as anti-inflammatory. The truth is more precise, and more interesting. A short primer on the pathway.