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Hospital-acquired pneumonia reduced by daily toothbrushing

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Why the right kind of stress is crucial for your health and happiness

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Are Neanderthals descendants of modern humans?

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We might finally know how to use quantum computers to boost AI

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Exclusive report: Inside Chernobyl, 40 years after nuclear disaster

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Collapse of key ocean current may release billions of tonnes of carbon

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How autoimmune conditions can unexpectedly drive mental illness

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The biggest threat to Chernobyl is no longer radiation

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Parrot uses his broken beak to become a dominant male

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The man who crawls into the perilous heart of the Chernobyl reactor