Humans

  1. Neuroscience

    Hormone hampers effects of marijuana

    Study of pot-blocking brain chemical in rodents could lead to new treatments for cannabis addiction.

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  2. Microbes

    Gut bacteria respect diets, not borders

    Malawian and Guahibo gut microbiomes resembled those of herbivorous mammals, while American guts were more similar to carnivores’.

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  3. Health & Medicine

    Nanoparticle injection blocks breast cancer growth in mice

    A nanoparticle-based therapy delivered directly to the mammary ducts could potentially stop pre-cancerous cells from becoming full-blown breast cancer, scientists say.

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  4. Health & Medicine

    Distractions raise crash risk for newly licensed drivers

    The risk of a crash or near-crash for newly licensed drivers is tripled or greater when they are eating, texting or rubbernecking, researchers report.

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  5. Health & Medicine

    Vitamin E might limit Alzheimer’s decline

    A trial of vitamin E in elderly veterans with Alzheimer’s shows promise for those in the early stages of the disease.

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  6. Humans

    Mother lode

    Certain sugar molecules in human breast milk do more to foster beneficial microbes, and banish harmful ones, than they do to nourish newborns.

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  7. Microbes

    The vast virome

    When it comes to the microbiome, bacteria get all the press. But virologists are starting to realize that their subjects also do a lot more than make people sick.

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  8. Anthropology

    Year in Review: Slain king’s bones dug up

    The king’s skeleton reveals fatal wounds.

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  9. Life

    Feedback

    Readers discuss dog origins and how important a sense of scale is in science journalism.

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  10. Psychology

    Year in Review: DSM-5’s controversial debut

    The diagnostic manual updates disorder criteria.

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  11. Health & Medicine

    Year in Review: Putting kids at risk

    U.S. parents increasingly are delaying their children’s vaccination.

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  12. Neuroscience

    Bad memories fade with a short jolt

    Research illustrates the vulnerability of the brain’s information storage.

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