We become hungry merely because of the time, not any true intrinsic hunger. This is learned only through decades of association. Children, on the other hand, often refuse food early in the morning because they are simply not hungry. Similarly, by consistently pairing movies with delicious popcorn and sugary drinks, the mere thought of a movie may make us hungry. Food companies, of course, spend billions of dollars trying to condition us to make these associations. Food at the ball game! Food at the movies! Food while watching TV! Food in between halves at our kids’ soccer games! Food while
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