Humans

  1. Health & Medicine

    Sun screen

    Too much exposure to the sun's ultraviolet rays can damage human skin. That's why doctors recommend people who will be outdoors for long hours in the summer sun protect their skin.

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  2. Health & Medicine

    Germ zapper

    A compound found in nature kills certain bacteria in a new way.

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  3. Humans

    If only bones could speak

    The shape of fossil spine bones suggests that ancient human ancestors could speak.

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  4. Health & Medicine

    Prehistoric trips to the dentist

    Thousands of years ago, some people had holes drilled into their teeth.

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  5. Health & Medicine

    Attacking Asthma

    Most kids with asthma no longer have to limit their activities.

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  6. Humans

    A Volcano’s Deadly Ash

    The discovery of long-buried skeletons and footprints suggests that a volcano could destroy Naples, Italy.

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  7. Health & Medicine

    Taking a Spill for Science

    Studying how and why people fall provides insights into movement and balance.

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  8. Humans

    Big woman of the distant past

    A Stone Age skeleton represents our largest known female ancestor.

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  9. Health & Medicine

    Eating Troubles

    Researchers are zeroing in on what causes certain people to see food as the enemy.

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  10. Health & Medicine

    Spit Power

    Saliva provides clues about diseases, dental cavities, and who might have been at a crime scene.

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  11. Humans

    Early Maya writing

    Archaeologists have found the earliest known example of Maya writing.

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  12. Health & Medicine

    Hear, Hear

    Listening to loud music or playing in a rock band without ear protection can lead to hearing loss.

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