Post-traumatic stress disorder
This syndrome entails disruptions in brain activity and changes in neural microstructural integrity. Recent research highlights the beneficial impact and efficacy of hyperbaric therapy in treating PTSD patients, particularly those who do not respond well to standard treatments. This therapy activates neuroplasticity, leading to noticeable symptom improvement.

Source:
Low pressure hyperbaric oxygen therapy and SPECT brain imaging in the treatment of blast-induced chronic traumatic brain injury (post-concussion syndrome) and post traumatic stress disorder
Retrospective Case Series of Traumatic Brain Injury and Post-Traumatic Stress Disorder Treated with Hyperbaric Oxygen Therapy
A Phase I Study of Low-Pressure Hyperbaric Oxygen Therapy for Blast-Induced Post-Concussion Syndrome and Post-Traumatic Stress Disorder