In an experiment, science journalist Lynne Peeples spent 10 days in an underground bunker, with no exposure to sunlight or clocks. She wanted to see what happened to her body and mind when it became out of sync with its natural circadian rhythm. She spoke with Tonya Mosley about what she learned, how we change with age, and the importance of sunlight. Her book is The Inner Clock.
Also, TV critic David Bianculli reviews the series Laid and Going Dutch.
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