Tag: American Lung Association

In Through the Nose, Out Through the Mouth

The advice to breathe “in through the nose, out through the mouth” appears to be based on superstition rather than science. Nose breathing is preferable. Breathing is automatic. We breathe in oxygen and breathe out carbon dioxide without having to think about it. But many people tell us we should think about… read more "In Through the Nose, Out Through the Mouth"