Bad habits - whether it’s smoking, drinking or over-eating - are the bane of society and a drain on the NHS. But who ever considered breathing through one’s mouth an outrageous habit? Yes, you guessed who. There appear to be one or two major health risks involved in Dr Allinson’s remedy, but what do we know, eh? On breathing properly: "Breathing through the mouth is a mistake. The mouth should be kept shut, unless we are eating, drinking, speaking, yawning or laughing. To learn to sleep with the mouth shut, use a piece of stamp paper, gum it over the mouth, and keep it on at night until you start breathing through the nose."