Gretchen Rubin and Elizabeth Craft encourage you to have a difficult conversation, whether it’s about health, money, or your family will. Then they talk to Professor of Physics at Harvard University Lisa Randall. She shares some of the habits that fit her rebellious tendency, which helped her write her new book Dark Matter and The Dinosaurs, out soon. Plus, Gretchen’s Demerit and Liz’s Gold Star.

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The episode was sponsored by Smith and Noble. Go to smithandnoble.com/happier for 20% off your window treatments, and a free in home consultation.