Humans

  1. Psychology

    Most people will add something — even when subtracting makes more sense

    People default to adding when solving puzzles and problems, even when subtracting works better. That could underlie some modern-day excesses.

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  2. Health & Medicine

    Simpler, easier COVID-19 test developed with kids in mind

    Designed by moms, it avoids any need to stick an uncomfortable swab up the nose. Instead, people just swish a dental roll around their mouths.

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  3. Health & Medicine

    Cool Jobs: Saliva offers a spitting image of our health

    Scientists are using this secretion to study our body’s functions, to test for disease and even to diagnose injury.

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  4. Brain

    Search for ‘rewards’ is big driver in remodeling a teen’s brain

    Communication ‘highways’ in the brain undergo a major overhaul as children morph into adults. Dopamine plays a big role in this remodeling project.

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  5. Health & Medicine

    Let’s learn about exercise

    Our bodies — from our muscles to our brains — love a good workout. Scientists are always learning new things about exercise.

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  6. Psychology

    Too much sitting could hurt your mental health

    As inactivity increases, so does risk of depression and other mental health problems, new studies show. But breaks for even light activity can help.

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  7. Health & Medicine

    Six tips to build more movement into your day

    Most people don’t move enough. The trick is to do what you can whenever you can, even if it’s just standing up more than once an hour and walking a bit.

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  8. Materials Science

    Bandages made from crab shells speed healing

    The chitin in seafood wastes, insect “bones” and fungi is a chemist’s dream. Used in a new medical dressing, it beats regular gauze for wound healing.

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  9. Health & Medicine

    Could a toothpaste help treat peanut allergy?

    By rolling an immune therapy into a toothbrushing routine, one company hopes to show its product can build and maintain tolerance to peanut allergens.

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  10. Health & Medicine

    Scientists Say: Placebo

    In clinical trials, scientists often test a drug or procedure against a placebo — a treatment that has no effect — to find out how well their new treatment works.

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  11. Health & Medicine

    Urban pollution can pose unseen risks to kids’ immunity and more

    A trio of new studies links immune changes and high blood pressure to inhaling bad air.

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  12. Health & Medicine

    Brown bandages would help make medicine more inclusive

    Peach-colored bandages label dark-skinned patients as unusual, says med student Linda Oyesiku. Brown bandages expand who’s seen as normal.

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