Do you ever feel as though your body is stuck in recovery mode? Perhaps you wake up stiff, struggle to feel refreshed after rest, or notice that minor aches seem to linger longer than they used to.
It can be frustrating when your body appears to be working hard, but never quite gets back to feeling balanced. Recent research into Hyperbaric Oxygen Therapy (HBOT) is helping scientists understand how pressurised oxygen may support the body’s natural shift away from prolonged inflammation and towards cellular repair.
The science is fascinating, but it is not a magic reset button. HBOT is best understood as one gentle, non-invasive way of supporting oxygen delivery and recovery, alongside the everyday foundations of wellbeing.
What is chronic inflammation?
Inflammation is not automatically a bad thing. In the short term, it is part of your body’s normal response to stress, injury or irritation. Blood flow changes, immune cells become active and chemical signals help coordinate repair.
The difficulty comes when these signals remain switched on for too long. Ongoing inflammation can place extra demands on your tissues, blood vessels and cells, particularly when combined with poor sleep, stress, inactivity, dehydration or slow circulation.
At a cellular level, inflamed tissue may also experience a mismatch between demand and oxygen supply. This does not mean that low oxygen is the only cause of inflammation, but it can contribute to an environment in which recovery becomes less efficient.
Why does pressure matter as well as oxygen?
It is easy to think of HBOT as simply breathing more oxygen. The pressure is an important part of the process.
Under normal conditions, most oxygen is carried around your body by haemoglobin in red blood cells. When oxygen is breathed in a pressurised environment, more of it can dissolve directly into the liquid portion of your blood, known as plasma. This can increase the amount of oxygen available to tissues, including areas where circulation may be less efficient.
A 2025 narrative review, “Oxy-inflammation in hyperbaric oxygen therapy applications”, describes HBOT as a way of creating systemic hyperoxia : in simple terms, a carefully controlled increase in oxygen availability.
The review also highlights an important point: the body responds not only to the oxygen itself, but to the combination of oxygen concentration, pressure, timing and session length.
How can HBOT influence inflammatory signals?
The body’s response to HBOT is complex, but several cellular processes are attracting attention.
1. A short oxidative signal may encourage adaptation
Breathing oxygen at increased pressure can briefly raise reactive oxygen and nitrogen species : molecules often associated with oxidative stress.
That might sound concerning, but these molecules also act as signalling messengers. In the right amount, they can encourage the body to activate its own antioxidant and repair systems. Researchers sometimes describe this as a hormetic response: a small, controlled challenge that encourages the body to adapt.
The 2025 review explains that this response may influence pathways linked with inflammation, immune activity and tissue repair. The balance is important. Excessive or poorly controlled oxygen exposure can be harmful, which is why protocols need to be carefully selected and monitored.
2. Cytokines may become less inflammatory
Cytokines are small messenger proteins that help immune cells communicate. Some, including interleukin-1 beta, interleukin-6 and tumour necrosis factor alpha, are associated with a stronger inflammatory response.
Research reviewed in the Hyperbaric Experts latest research roundup suggests that HBOT may influence these signals in certain inflammatory and hypoxic conditions. The 2025 review also discusses findings involving nuclear factor kappa B, or NF-κB, a pathway that helps regulate inflammatory gene activity.
This does not mean that one session switches inflammation off. Rather, repeated and appropriately dosed exposure may help create conditions in which inflammatory signalling is less dominant and repair signalling has more room to work.
3. Antioxidant defences may receive support
Your cells already have their own antioxidant systems. These include molecules and enzymes that help manage oxidative stress and protect cell structures.
HBOT may encourage pathways involving Nrf2, a protein that helps regulate the expression of antioxidant and protective genes. In studies reviewed by researchers, changes in antioxidant activity have been observed alongside alterations in inflammatory markers.
The response is individual, and not every study shows the same outcome. Still, it helps explain why HBOT is being studied as more than a simple oxygen-delivery technique.
What does this mean for mitochondria and cellular energy?
Your mitochondria are often described as the powerhouses of your cells. They use oxygen and nutrients to produce ATP, the chemical energy your body uses for movement, concentration, repair and countless everyday functions.
When tissues are under stress, mitochondrial energy production can become less efficient. This may leave you feeling tired and can make recovery feel slower, although fatigue always has many possible causes.
By increasing oxygen availability, HBOT may support mitochondrial metabolism in tissues where oxygen delivery is limited. Research has also examined whether HBOT can influence mitochondrial markers and oxidative stress.
The important wording is support. HBOT does not replace sleep, nourishment or movement, and it is not a guarantee of increased energy. It may, however, form part of a broader recovery routine designed to help your body function more efficiently.
Can pressurised oxygen support tissue healing?
Inflammation and healing are closely connected. For tissue to repair itself, your body needs oxygen, energy, blood vessel activity, immune regulation and the production of structural proteins such as collagen.
Research discussed in the 2025 review suggests that HBOT may support several of these processes by:
- Increasing oxygen availability in hypoxic tissue
- Supporting fibroblast activity and collagen formation
- Encouraging new blood vessel development in certain settings
- Influencing immune-cell behaviour
- Supporting antioxidant defences
- Helping regulate pathways involved in cell survival and repair
A review of 18 studies involving 671 participants, summarised by Hyperbaric Experts and available through PubMed, found that HBOT was associated with reductions in pain and modest improvements in function and quality of life in some musculoskeletal conditions. Inflammation markers improved in some studies, but results were mixed, especially for short-term exercise soreness and acute soft-tissue injuries.
That distinction matters. Research findings relate to the people who took part in those studies, using the specific protocols tested. They should not be presented as proof that the same outcomes will occur for every person, or as evidence that Flow Well’s clients will experience identical results.
How does Flow Well’s HBOT protocol compare with research studies?
Many clinical studies use 100% oxygen at pressures ranging from approximately 1.5 to 3.0 ATA. Some use 2.0 ATA or higher, particularly when investigating specific medical indications in hospital or specialist settings.
Flow Well uses 1.5 ATA at 93% oxygen. This is not the same protocol as a study using 2.0 ATA and 100% oxygen, so findings should never be transferred directly from one setting to the other.
Our 1.5 ATA setup is chosen for its balance of comfort and wellness benefits. It provides a gentle, non-invasive environment for general recovery and wellbeing support, rather than presenting HBOT as a medical intervention for a specific disease.
You can read more about the session experience and protocol on our HBOT page.
Why do circulation and compression matter too?
Oxygen delivery is only one part of the recovery picture. Flow Well’s approach can also combine the oxygen saturation from HBOT with mechanical movement and compression from Vasotherapy.
Vasotherapy is a circulation-first modality. Its circular mechanical movement encourages vessel dilation, while compression through garments, boots or pressure pads supports circulation and lymphatic flow. Lymphatic drainage is a benefit of this process, rather than its primary function.
Together, these therapies offer two complementary forms of support: HBOT increases oxygen availability, while Vasotherapy encourages circulation and fluid movement. As always, the most suitable approach depends on your goals, health background and how your body responds.
What can you do to support your cells between sessions?
There is no one-size-fits-all solution for inflammation or recovery. Your daily habits still provide the foundation.
Try to support your body with regular, comfortable movement, sufficient fluids, balanced meals and a consistent sleep routine. Managing stress matters too, as your nervous system and immune system are constantly communicating : your body is one team, even if it occasionally behaves like a committee that cannot agree on a meeting time.
Meaningful change usually comes from patience and consistency, not from chasing the fastest possible result. Some people notice a difference after one session, while others benefit from a more structured course. Neither response is unusual.
When should you seek professional advice?
Flow Well provides non-invasive therapies for general wellness support. HBOT is not a replacement for medical diagnosis, treatment or urgent care.
Speak with your GP or another qualified healthcare professional before starting a new therapy programme if you are pregnant, managing a medical condition, recovering from surgery, or have concerns involving your ears, sinuses, lungs or medication. Seek urgent medical advice for severe, sudden or worsening symptoms.
If you would like to understand how HBOT may fit into your wider recovery routine, you can book a consultation call. It is a low-pressure way to ask questions and decide what feels right for you.