Escaping artificial light even for a winter weekend can reset sleep patterns for the better, researchers say. One good place to do it: Heliotrope Ridge near Mount Baker in Washington state. Christopher Kimmel/Aurora Open/Getty Images hide caption

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Teen Night Owls Struggle To Learn And Control Emotions At School

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This happens, pediatricians acknowledge. So they're offering advice on how to reduce the risk of bed sharing with infants, which includes removing loose bedding that could lead to suffocation. PhotoAlto/Anne-Sophie Bost/Getty Images hide caption

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One Silicon Valley startup that encouraged its employees to think about work 24/7 found they missed market signals, tanked deals and became too irritable to build crucial working relationships. Hill Street Studios/Blend Images/Getty Images hide caption

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Many Grouchy, Error-Prone Workers Just Need More Sleep

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Sleep Deprived: We're Recharging Our Phones, But Not Ourselves

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Scenes like this, from Kolkata, are typical across some of India's biggest cities. Dibyangshu Sarkar /AFP/Getty Images hide caption

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A Bad Night's Sleep Might Do More Harm Than You Think

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