Habits & Health episode 54 with Dr Bill Hang, an orthodontist who for 32 years has been reversing previous orthodontic retraction by re-opening orthodontic extraction spaces to give people back their face, improve breathing and eliminate OSA (Obstructive Sleep Apnea) when possible.
He explains that the most important habit to support proper forward facial growth is to have every child adopt proper nasal breathing with proper rest oral posture (teeth lightly together, tongue firmly to the palate, and lips together without strain) at rest all of the time. This promotes optimal forward facial growth, and avoids many medical and dental problems associated with chronic mouth breathing.
Bill was mentioned in the book The Oxygen Advantage by Patrick McKeown where he was cited for his work in helping people with sleep apnea.
Full shownotes, links and transcript available at:
https://tonywinyard.com/dr-bill-hang/
The Art of Living Proactively (Harnessing the Power of Your Choices)