No Stupid Questions

101. Are You Really "Addicted" to Diet Coke?

<p>Where’s the line between an addiction and a bad habit? Why do definitions of mental illnesses change over time? And what’s the most addictive thing in the world?</p>

Research psychologist Angela Duckworth (author of "Grit") and tech and sports executive Mike Maughan really like to ask people questions, and they believe there’s no such thing as a stupid one. So they have a podcast where they can ask each other as many “stupid questions” as they want. New episodes each week. "No Stupid Questions" is a production of the Freakonomics Radio Network.

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