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It seems that some of the simplest questions can have the most complicated answers, and in Scientific American Frontiers: Life's Little Questions, host Alan Alda examines several of these. "Why are peppers hot?" is the first, and Alda looks at capsicum, the substance that gives hot peppers their fire, that is also a potent pain reliever."Can You Beat Jet Lag?" wonders if the annoying malady can be cured. Bees, with their heavy bodies, should not be able to fly, but how they do is dealt with in "How Do Bees Fly?" "Why Does Traffic Jam?" offers answers to a puzzling and frustrating problem for commuters.