How your sense of smell helps you savor flavor

Eating pizza with a stuffy nose just isn't as satisfying -- and there's a reason for that. Dr. Jen Gunter explains how our ability to smell and taste work together to give us a full sensory experience. So whether you're sniffing the caramelized aroma of coffee, a whiff of trash or a trillion other things, your brain knows exactly what's under your nose. (For more on how your body works, tune in to her podcast, Body Stuff with Dr. Jen Gunter, from the TED Audio Collective.)