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The US Army's new Holistic Health and Fitness Management System tries to unify sleep, nutrition, biometrics and mental health for hundreds of thousands of soldiers. It's the largest real-world test yet of population-scale optimization.
As the GLP-1 class expands beyond weekly injections, three new studies sketch a more complicated risk-benefit map than the headline weight-loss numbers suggest.
A cross-sectional analysis of nearly 42,000 older Europeans suggests muscular strength softens the link between a cancer diagnosis and depressive symptoms. The signal is moderate — but the direction is unmistakable.
A 2025 meta-analysis of 65 studies finds that depression following a cancer diagnosis is associated with substantially higher mortality — strengthening the case for mental-health screening inside oncology.
A new BMJ study using UK primary care data compared GLP-1 users head-to-head with other diabetes drugs — and the suicide-risk signal regulators have been chasing didn't show up.