Health & Medicine

  1. airplane bathroom sign
    Microbes

    Airplane sewage may be helping antibiotic-resistant microbes spread

    Along with drug-resistant E. coli, airplane sewage contains a diverse set of genes that let bacteria evade antibiotics.

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  2. Neutron star merger illustration
    Science & Society

    These science claims from 2019 could be big deals — if true

    Some of this year’s most tantalizing scientific finds aren’t yet ready for a “best of” list.

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  3. Spravato
    Health & Medicine

    In 2019, a ketamine-based antidepressant raised hopes and concerns

    Ketamine and related molecules might ease severe depression, but the drugs come with baggage.

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  4. Juul packages
    Health & Medicine

    Vaping’s dangers loom large amid more than 50 U.S. deaths this year

    Lung injuries and deaths linked to vaping in 2019 are a sobering indication of the dangers of e-cigarettes as teen use continues to rise.

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  5. baby with measles rash
    Health & Medicine

    Measles got a foothold in the United States this year and almost didn’t let go

    Areas of low vaccination are blamed for the United States' largest number of measles cases in more than 25 years.

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  6. Cas9 protein
    Genetics

    The first U.S. trials in people put CRISPR to the test in 2019

    Trials of the gene editor in people began in the United States this year, a first step toward fulfilling the technology’s medical promise.

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  7. chromosome
    Health & Medicine

    Surplus chromosomes may fuel tumor growth in some cancers

    Extra copies of some genes on excess chromosomes may keep cancer cells growing. Without those extras, cancer cells form fewer tumors in mice.

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  8. prion proteins
    Life

    Prions clog cell traffic in brains with neurodegenerative diseases

    Prions may derail cargo moving inside brain cells, perhaps contributing to cell death in prion diseases.

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  9. Rembrandt self-portrait
    Science & Society

    Why Rembrandt and da Vinci may have painted themselves with skewed eyes

    A strongly dominant eye, not an eye disorder, may explain why some great artists painted themselves with one eye turned outward.

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  10. amyloid
    Health & Medicine

    A once-scrapped Alzheimer’s drug may work after all, new analyses suggest

    An antibody that targets Alzheimer’s sticky protein amyloid showed promise in slowing mental decline, according to the company that’s developing it.

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  11. German polar research station
    Health & Medicine

    Scientists’ brains shrank a bit after an extended stay in Antarctica

    The experience of an isolated, long-term mission at an Antarctic research station slightly shrunk a part of crew members’ brains, a small study finds.

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  12. doctor
    Health & Medicine

    Medications alone work as well as surgery for some heart disease patients

    Patients with stable ischemic heart disease may be able to avoid stents or bypass surgery with medications alone.

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