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People’s brains aged faster during the COVID pandemic — even the uninfected

Study of nearly 1,000 people showed that brain ageing was not linked to infection status, but cognitive decline was.
By
  1. Gemma Conroy

    1. Gemma Conroy is a freelance science journalist based in Mexico City.

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The brains of healthy people aged faster during the COVID-19 pandemic than did the brains of people analysed before the pandemic began, a study of almost 1,000 people suggests1. The accelerated ageing occurred even in people who didn’t become infected.

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Nature 643, 1167-1168 (2025)

doi: https://doi.org/10.1038/d41586-025-02313-3

References

  1. Mohammadi-Nejad, A.-R. et al. Nature Commun. https://doi.org/10.1038/s41467-025-61033-4 (2025).

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