Taste can tell us in an instant whether something is edible or poisonous.
Smell—and by extension flavor—is a highly nuanced sense that allows us to precisely identify tens of thousands of different substances.
The Taste & Smell app describes the basics of how these senses work. Yet taste, smell, and flavor are highly individual. We get near daily reminders of the differences in detection and preference, with questions like "Do you smell that?" "Do you like broccoli?" "What's your favorite ice cream flavor?"
Read on to learn more about what makes taste and smell so highly individual (hint: some of it is genetic and some of it is learned), along with a few other lesser-known facts.