Humans

  1. Health & Medicine

    Chew for Health

    Surprise your teacher: New studies show that chewing gum might be good for you!

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  2. Humans

    Earth Rocks On

    Some rocks in Greenland show that Earth's crust was moving even 3.8 billion years ago.

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  3. Health & Medicine

    Wake Up, Sleepy Gene

    Variation in the length of one gene affects how well you function when short of sleep.

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  4. Health & Medicine

    Childhood’s long history

    Our ancient ancestors had long childhoods, just as we do today.

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  5. Health & Medicine

    A fix for injured knees

    A new way of repairing a common knee injury might someday help athletes recover faster.

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  6. Humans

    Stonehenge settlement

    The remains of a prehistoric village lie near the legendary stone circle in England known as Stonehenge.

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  7. Health & Medicine

    Eat Out, Eat Smart

    Knowing the number of calories in your restaurant meal can help you make healthier food choices.

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  8. Humans

    Island extinctions

    Many of Australia's largest animals died out after people came to the island continent.

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  9. Health & Medicine

    Smiles Turn Away Colds

    A good mood and a relaxed attitude help keep colds away.

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  10. Health & Medicine

    Hot Pepper, Hot Spider

    Hot peppers and spider venom can cause the same sort of painful burning sensation.

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  11. Health & Medicine

    Disease Detectives

    This year's top young scientists faced medical challenges in labs at the National Institutes of Health.

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  12. Humans

    Oldest Writing in the New World

    Signs carved into a stone slab may represent the earliest known writing in the Americas.

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