@Vulgano-Brother said in Saw this in the Daily Mail passing through Heathrow Airport:
When in Germany I had a colleague (trombone player, but smarter than most) who had taken part in a study about lung capacity among brass players. The finding was that brass players don't really have bigger lungs, but can easily control the exhalation.
When I was in my hospital bed, I had my pocket trumpet with me. When I started circular breathing my pulse optometry increased by 6%! That positive end respiratory pressure really does open up more alveolar sacks.