Yes, there have been many randomised controlled studies looking at Buteyko breathing for asthma. Buteyko breathing has been listed in the BTS/SIGN Guideline on the Management of Asthma since 2008. There is some published data on sleep apnoea too.
Yes, there have been many randomised controlled studies looking at Buteyko breathing for asthma. Buteyko breathing has been listed in the BTS/SIGN Guideline on the Management of Asthma since 2008. There is some published data on sleep apnoea too.