Types of OlfactionRetronasal olfaction greatly enhances the flavor of food by carrying aromatic compounds up the back of the throat and into the sinus cavity where the olfactory bulb is found.

In times of sinus inflammation and congestion, like seasonal allergies or with a head-cold, the molecules do not travel as easily towards the olfactory bulb. This accounts for the “bland” flavor of foods when experiencing a sinus infection or allergy season as our ability to enjoy the taste of food is intimately tied to our ability to smell it.