Most people have witnessed this at least once. Two people order the exact same pizza. One person happily eats every single bite, including the crust. The other leaves a perfect ring of crust behind on the plate. The same thing happens with sandwiches, toast and loaves of bread. For years, people who avoid crust have been labeled as picky eaters or accused of having childish eating habits. But psychology suggests the explanation may be more complicated. The way humans experience food is influenced by biology, sensory preferences, memories and even reward systems inside the brain. In other words, the crust is not always the problem. The brain's interpretation of the crust may be.
Here is what psychology says may actually be happening.
