Your sense of smell is like a superpower. Dr. Alan Hirsch of the Smell and Taste Treatment and Research Foundation explains how you can make the most of it. Your nose is always working, even when you're asleep. It can affect your mood, your ability to concentrate, and even your sense of time and space. The kicker? A lot of the time, you may not even know you're being affected! To learn more about smell, we sat down with Dr. Alan Hirsch, a neurologist and psychiatrist who specializes in the treatment of smell and taste loss. Dr. Hirsch is Neurological Director of the Smell & Taste Treatment and Research Foundation in Chicago, where he conducts in-depth studies of the chemosensory system and its impact on virtually all aspects of life: behavior, emotions, mood and human interaction, and even learning speed. He has also written numerous books including "Scentsational Weight Loss", "Scentsational Sex", and "What Flavor Is Your Personality?" Studies discussed: Minnesota Multiphasic Personality Inventory (MMPI) Millon Clinical Multiaxial Inventory (MCMI) Beck Depression Inventory (BDI) Zung Self-Rating Anxiety Scale (SAS) Further materials from Dr. Hirsch: Smell & Taste Treatment And Research Foundation, Ltd. Dr. Hirsch's Amazon Author Page "What Flavor is Your Personality? Discover Who You Are by Looking at What You Eat" "Scentsational Weight Loss: At Last a New Easy Natural Way To Control Your Appetite" "Scentsational Sex: The Secret to Using Aroma for Arousal" Follow Curiosity Daily on your favorite podcast app to get smarter withCody Gough andAshley Hamer — for free! Still curious? Get exclusive science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers.