Humans

  1. Health & Medicine

    Scientists Say: Lymph

    Lymph is a colorless fluid that bathes the body’s tissues and mops up bacteria, viruses and wastes.

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  2. Psychology

    Social media doesn’t, by itself, make teens unhappy or anxious

    Checking social media frequently doesn’t necessarily cause unhappiness, a new study finds. Sleep, exercise and cyberbullying are also key.

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  3. Health & Medicine

    Ultrasound might become a new way to manage diabetes

    Ultrasound turns on production of the hormone insulin in mice. Someday, it might help maintain healthy blood-sugar levels in people who were recently diagnosed with diabetes.

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  4. Health & Medicine

    Explainer: What is ultrasound?

    These sound waves, which fall above the range of human hearing, are important in medicine, medical imaging and more.

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  5. Animals

    Cool Jobs: Poop investigators

    Far from just being waste, poop is loaded with clues to the health, biology and behavior of whatever body produced it.

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  6. Brain

    Brain ‘ripples’ appear just before you remember something

    Nerve cells in the brain’s hippocampus, a key memory center, fire together a second or two before people begin to recall an image, data now show.

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  7. Archaeology

    Scientists Say: Mummy

    Mummies are dead bodies that don’t rot. They can form under natural conditions or because of chemicals that stop decay.

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  8. Health & Medicine

    Don’t snooze on getting enough sleep

    Sleeping the right amount at night is good for mental and physical health. Ironically, napping isn’t always helpful.

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  9. Health & Medicine

    Tiny vest could help sick babies breathe easier

    A new invention helps sick babies breathe easier. It looks like a tiny lifejacket and it avoids the mask and tubes that get in the way of breastfeeding.

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  10. Genetics

    CRISPR enters its first human trials

    A host of new human trials are using a gene-editing tool known as CRISPR to treat genetic diseases — from sickle cell and cancers to a blinding eye disorder.

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  11. Brain

    Routine hits in a single football season may harm players’ brains

    A group of college football players underwent brain scans after a season of play. The results suggest playing the sport could harm neural signaling.

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  12. Health & Medicine

    Outbreak of lung disease, including 5 deaths, tied to e-cigarettes

    Some 450 e-cig users have been hospitalized for severe lung disease across 33 states and U.S. territories. Five of them have died.

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