We hear about the rule of threes regarding survival:  in general, a human can live for three minutes without oxygen, three hours without shelter in an extreme environment, and three days without drinkable water.  However, we often forget that chronic hypoxia or chronic oxygen deprivation is much more common and affects people of all ages and stages of life. Today we have an absolute world expert in this often overlooked area.  Dr. Felix Liao holds an engineering degree from Brown University and a DDS (Doctor of Dental Surgery) from Case School of Dental Medicine. He explains how the size of your airway can influence every area of total health - from brain to body pain. Past president of the International Academy of Biological Dentistry and Medicine, he trains dental professionals to recognize and treat airway issues. 

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