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Can Sleep Quality and Quantity be Boosted Using Sound?

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How Sleep Helps Children Learn and Remember New Words

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How Coronavirus Tests Work

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An American Cancer Patient Receives Treatment in Cuba

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How the Hormone Leptin Helps Regulate Appetite

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Can Scientists Use RNA to Create a Coronavirus Vaccine?

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When You Lose a Loved One to Coronavirus

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How Wuhan is Using Digital Gatekeeping to Reopen

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How Viruses Like the Novel Coronavirus Evolve

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NOVA

Are Cats More Expressive Than We Think?

It's tough to tell how a cat is feeling just by watching its facial expressions. Can science be used to detect more subtle facial changes that reveal cats' emotions?