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  • is Mythos the start of the restricted-AI era?

    is Mythos the start of the restricted-AI era?0

    In April, the artificial-intelligence firm Anthropic announced it had made an AI model too dangerous to be released to the public. The company, based in San Francisco, California, said its Claude Mythos model was so powerful that it had found vulnerabilities in every major operating system and web browser currently in use. “The fallout —

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  • Stress impairs your brain’s ability to link memories — dampening insight

    Stress impairs your brain’s ability to link memories — dampening insight0

    Stress has widespread effects on the brain.Credit: K H Fung/Science Photo Library Acute stress makes it difficult to link memories of past events with fresh information, a study1 suggests. The results help to explain why people struggle to show insight under pressure. The study, published today in Science Advances, combined brain imaging and psychological testing

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  • Becoming a mother leaves long-lasting molecular memories

    Becoming a mother leaves long-lasting molecular memories0

    Nature, Published online: 20 May 2026; doi:10.1038/d41586-026-01327-9 In mice, motherhood induces transcriptional changes in the brain that endure beyond short-term hormonal shifts. Postpartum stress disrupts these patterns.

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