Humans

  1. Health & Medicine

    How hot peppers can soothe pain

    Peppers can burn the tongue, but soothe sore tissues. Scientists have now sleuthed out how, and the answer shows a role for stretch sensors on cells.

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  2. Physics

    Eyelashes: The ‘sweet’ length

    New mathematical and aerodynamics studies find what seems to be the optimal length for eyelashes — the length that protects best. And surprise: Longer is not always better.

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  3. Health & Medicine

    Mice can teach us about human disease

    Humans and mice look and act very differently. But 85 to 90 percent of their genes are the same or quite similar. So an international group of scientists is deciphering the instructions in mouse genes to help us better understand our own.

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  4. Health & Medicine

    Peanuts for baby: A way to avoid peanut allergy?

    Making peanut products a baby food could head off life-threatening peanut allergies later, new data show.

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  5. Psychology

    Scientists Say: Pareidolia

    We often see things that aren’t there, such as bunnies in clouds or faces in toast. They aren’t real, but they do have a special name

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  6. Health & Medicine

    Vision-ary high tech

    New devices are being developed to improve, restore or preserve the vision of people with eye diseases, such as glaucoma and macular degeneration. One device is a telescopic contact lens than can be zoomed with a wink.

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  7. Health & Medicine

    The steady creep of less sleep

    More than half of all teens 15 and older get less than seven hours of sleep, according to a new study. That is two to three hours less than recommended. Overall, teens are sleeping less with each passing year, data show.

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  8. Health & Medicine

    When a part makes you whole

    New technologies allow medical experts to create remarkably detailed artificial faces. They can help restore the appearance — and the confidence and self-esteem — of patients who have suffered a disfiguring injury or disease.

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  9. Health & Medicine

    Skip the soft drinks, period

    Beyond the quest for trim waistlines and cavity-free teeth, girls have another reason to shun sodas and other sweetened drinks. These beverages may help launch the body’s menstrual cycles at an earlier age.

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  10. Health & Medicine

    Teens exhibit a zeal to heal

    Broadcom MASTERS is the premier middle school science and engineering competition. Several 2014 finalists showed a flair for biomedicine. These young researchers tackled everything from diagnosing cancer early to alerting drowsy drivers before they fall asleep at the wheel.

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  11. Brain

    Screen time can mess with the body’s ‘clock’

    Reading on an iPad in the evening can make it harder to fall asleep — and harder to wake up the next morning, a new study finds. The light from its screen tinkers with the body’s clock. And that could risk harming your health.

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  12. Health & Medicine

    U.S. outbreak of measles emerges

    The United States is experiencing an outbreak of measles. A traveler likely brought in the virus from abroad, which is now spreading. Most of those infected were never vaccinated and could now face serious health risks.

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