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  • Immune cells in the blood drive cognitive ageing — blocking them improves memory

    Immune cells in the blood drive cognitive ageing — blocking them improves memory0

    Age-related memory decline could be caused by ageing immune cells.Credit: JasonDoiy/Getty A type of immune cell circulating in the blood contributes to cognitive ageing, and blocking its effects can reverse the changes, suggests a mouse study published in Immunity on 14 May1. T cells have many jobs, chiefly destroying pathogens. But as people age, a

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  • Hantavirus outbreak exposes uncertainty about how disease spreads

    Hantavirus outbreak exposes uncertainty about how disease spreads0

    Passengers disembarked from the MV Hondius at the Canary Islands wearing personal protective equipment.Credit: Chris McGrath/Getty Close to 150 passengers and crew members on the cruise ship MV Hondius struck by an outbreak of a deadly hantavirus have disembarked and are returning to their home countries, where they will quarantine. The way that will happen,

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  • How fertilizer shortages caused by the energy crisis threaten food security

    How fertilizer shortages caused by the energy crisis threaten food security0

    Since March, war in the Middle East has disrupted global fertilizer markets. Urea prices jumped by nearly 46% in a month, as geopolitical and energy shocks hit nitrogen supply chains1. The disruptions caused by blocked maritime bottlenecks, including the Strait of Hormuz, limiting tanker movements and flows of oil and liquefied natural gas, underscore the

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  • This organoid can menstruate — and shows how tissue can repair itself

    This organoid can menstruate — and shows how tissue can repair itself0

    Gynaecological disorders such as endometriosis could be studied using endometrium organoids.Credit: fizkes/Shutterstock Researchers have developed organoids that can regenerate like the endometrium, the lining of the uterus that sheds and re-forms during the menstrual cycle. The team used the miniature 3D structures to simulate rarely seen repair processes, which could inform future therapeutic strategies for

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  • Engineered blood clots stop bleeding in seconds

    Engineered blood clots stop bleeding in seconds0

    Jiang, S. et al. Nature https://doi.org/10.1038/s41586-026-10412-y (2026). Article  Google Scholar  Guo, B., Dong, R., Liang, Y. & Li, M. Nature Rev. Chem. 5, 773–791 (2021). Article  PubMed  Google Scholar  Peshkova, A. D. et al. Blood Adv. 9, 3418–3428 (2025). Article  PubMed  Google Scholar  Garyfallogiannis, K. et al. Acta Biomater. 159, 49–62 (2023). Article  PubMed  Google

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  • The memory dealer of Old Jeddah

    The memory dealer of Old Jeddah0

    The holographic minaret of Al-Shafi’i drilled the Adhan straight into the mastoid bone behind my ear. A neural vibration, not a sound. Maghrib. Above the coral houses of Al-Balad, the Ministry’s drones buzzed back to their hives, glutted on our biometric data. I sat on my synthetic rug in a shop squeezed between a hissing

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