Traumatized survivors of the Hamas Oct 7 terror attacks and IDF soldiers with PTSD are receiving HBOT therapy (see here) breathing pure oxygen in high pressure cabins. It is one of the treatments available to patients of the national clinic for PTSD, created by Tel Aviv University.

https://bnnbreaking.com/breaking-news/health/israeli-ptsd-victims-find-hope-in-hyperbaric-oxygen-therapy-post-hamas-attacks/ .

https://english.tau.ac.il/news/national-ptsd-clinic