Humans

  1. Brain

    Teeny tiny hairs on brain cells could have big jobs

    Brain cells have tiny antennae called cilia. But no one really seemed to know what they did. Now, scientists have shown they could play a role in obesity.

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  2. Brain

    Scientists Say: Receptor

    This molecule is a chemical messenger’s docking station. A receptor serves as a lock for cell activity.

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  3. Brain

    Cool Jobs: Decoding how your brain ‘reads’

    For some stroke victims and people with dyslexia, reading is nearly impossible. These researchers are working to understand why.

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  4. Health & Medicine

    How the body protects us from potentially toxic amounts of sugar

    A study in mice shows the small intestine shields the liver from the potentially damaging effects of exposure to fructose — but only up to a limit.

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  5. Health & Medicine

    Teens win big prizes for research on potato killer, vaping and a rare disease

    The Regeneron Science Talent Search awarded more than $2 million in prizes this year. This year’s top winners tackled plant disease, vaping and more.

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  6. Health & Medicine

    Scientists Say: Ectoparasite

    Many people think of parasites as organisms that live inside their hosts. But some of them can be found on the outside instead.

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  7. Fossils

    Ancient jaw suggests humans left Africa earlier than thought

    A fossil jaw found in a cave in Israel is at least 177,000 years old. The scientists who found it think it shows humans left Africa much earlier than thought.

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  8. Space

    En route to Mars, astronauts may face big health risks

    Going into space brings the thrill of a new frontier — and risks that scientists are racing to understand, from radiation to isolation.

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  9. Health & Medicine

    Yuck! Bedbug poop leaves lingering health risks

    Chemical residues left by bedbugs can persist, even when the pests have been eradicated. This may explain lingering allergic symptoms in cleaned up homes, a new study concludes.

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  10. Health & Medicine

    Scientists Say: CT scan

    Short for computerized tomography, this technique lets scientists and doctors see insides in detail.

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  11. Tech

    Human cells form the basis of this artificial eye

    Real or fake — you be the judge. Human cells were used to create this test bed for studying both the eye and eye-disease therapies.

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  12. Materials Science

    Hairy nanoparticles put viruses in a deadly embrace

    Current drugs can’t stop viruses for good. But newly developed hairy nanoparticles just might. They surround and put pressure on the viruses, which ultimately destroys them.

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