Double Reed instruments have also been shown to have a positive effect for those suffering from sleep apnoea. It seems due to the higher air pressure needed to

Double Reed instruments have also been shown to have a positive effect for those suffering from sleep apnoea. It seems due to the higher air pressure needed to play: https://en.wikipedia.org/wiki/Double_reed https://en.wikipedia.org/wiki/Double_reed Presumably quadruple reed instruments (that require even more air pressure to play) would be even better: https://en.wikipedia.org/wiki/Quadruple_reed https://en.wikipedia.org/wiki/Quadruple_reed