Humans

  1. Science & Society

    Stressed by tech? Here’s how to find help

    This checklist can help you assess and improve your experiences — and your mental health.

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  2. Science & Society

    Large numbers of underage kids are on social media, study finds

    Two in every three kids aged 8 to 12 have already been on social media, and one-tenth have been bullied there. Some kids report other bad experiences too.

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  3. Health & Medicine

    A new cell model could help kids and teens with arthritis

    This model was built by a teenager with juvenile idiopathic arthritis — a poorly understood chronic illness.

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  4. Brain

    Adolescence appears to last far longer than once thought

    The brain undergoes “rewiring” throughout adolescence and doesn’t reach its adult architecture until our early 30s, suggests a new study.

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  5. Health & Medicine

    Scientists Say: Symptom

    A runny nose, fever or feeling of fatigue might clue your doctor in to the right diagnosis.

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  6. Tech

    New light-activated coating can kill stubborn germs

    Based on graphene, this new material can knock out hard-to-kill germs on contact — even in your mouth.

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  7. Archaeology

    Neandertals used fire-making tools 400,000 years ago

    Flint, iron pyrite and fire residues found at an ancient site in England offer the earliest clear evidence of people lighting fires.

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  8. Humans

    Using physics can help athletes avoid sports injuries 

    Jessica Talmage uses physics to help understand how the body moves. Her findings help athletes avoid sports injuries and improve their performance.

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  9. Health & Medicine

    New study links early smartphone ownership to health risks

    The earlier kids get smartphones, the more likely they’ll get too little sleep, gain weight — and possibly develop depression, a new study suggests.

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  10. Health & Medicine

    You need to eat protein — but the right mix really matters

    All proteins are not equal, research is showing. So while most Americans get plenty of protein, they might not be eating the most nutritious blend.

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  11. Chemistry

    Explainer: What is chirality?

    Chiral molecules are mirror images of each other. They might not seem all that different — but can have drastically different effects in medicine, materials and more.

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  12. Health & Medicine

    Butt breathing might help people struggling to get enough oxygen

    This strange investigation into whether humans can use the gut for breathing has surprisingly heartwarming origins: helping the scientist’s dad.

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