Listen: Why do people crave ultraprocessed foods so much?

Many people love to eat ultraprocessed foods. Think about those crispy French fries or a delicious strawberry milkshake.

Ultraprocessed foods are heavily changed from their original form and made mostly in factories rather than kitchens.

Instead of simple ingredients you might recognize—like flour, eggs, or milk—these foods often contain long lists of additives, preservatives, artificial flavors, and...