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Taryn Winter Brill reports on a Boston exhibit based on the new book, "What I Eat: Around the World in 80 Diets." Also, Health Magazine's Frances Largeman-Roth speaks about our own eating habits.

Health Magazine senior editor Frances Largeman Roth explained to Rebecca Jarvis why we get hungry and shared tips on how to curb those cravings.

Health Magazine's Frances Largeman-Roth gives examples of healthy diets for adults in their 30s, 40s and 50s.