Delaware Public Media

Tara Boyle

Paul Rozin has been studying the psychology and culture of food for more than 40 years. And he's come to appreciate that food fills many of our needs, but hunger is just one.

"Food is not just nutrition that goes in your mouth or even pleasant sensations that go with it," he says. "It connects to your whole life, and it's really a very important part of performing your culture and experiencing your culture."

Have you ever noticed that when something important is missing in your life, your brain can only seem to focus on that missing thing?

When Johnny Fox was a boy, all his friends were obsessed with superheroes.

"Friends of mine were reading comics about Superman and Batman and I thought, 'You know, this is cartoons and made-up stories,' " he says. "I want a real superhero. There's got to be real superheroes out there."

When he was 8 or 9, his parents took him to the Eastern States Exposition near Springfield, Mass. That's where he found those real superheroes.