The present invention relates to a method for determining the treatment ofobstructivesleep apnea that lowers the Apnea Index for a subject suffering from the same,comprising (I) obtaining a computer generated model of the upper airway of asubject；(II) modeling the air flow through the structural model of the upper airwayusing obtaineddata as to the flow and pressure in the subject at particular locations in thethroat； and(III) determining treatments which lead to an increase in flow pressure at thenarrowestcross-section thereby reducing the Apnea Index.
