The Buteyko method is a form of medical woo that purports to treat asthma and other conditions.
Practitioners will claim that: "Buteyko is a clinically proven technique that delivers immediate and sustained relief from breathing-related problems. It is drug free and can be practised by children and adults." Apart from asthma, supporters claim efficacy against a range of other conditions, including sleep apnoea, bronchitis, emphysema and bed-wetting. Oh yeah, it will also boost sports performance.
The method was developed in Russia in the 1950s by physiologist Konstantin Buteyko and quickly gained status as an approved treatment for bronchial asthma.
There is little scientific support for the Buteyko method, with few high-quality clinical trials undertaken.
The method posits that the cause of asthma and many other conditions is hyperventilation, therefore if the depth of breath is reduced, it can potentially treat those diseases. They achieve this by sheer willpower and relaxing of breathing muscles.