O2 TRAINER | Breathing Exercise for Asthma, Bronchitis, Emphysema, COPD, Cystic Fibrosis, Anxiety, PTSD @O2TRAINER | Uploaded August 2022 | Updated October 2024, 3 minutes ago.
Correct breathing and strengthening you breathing muscles will do wonders for you, but don't believe Bas, just read the published medical journals on o2trainer.com under the tab SCIENCE