Five sleep-wake profiles rewrite the basic night-owl vs early-bird labels

TL;DR Summary
A McGill-led study using AI, brain imaging and UK Biobank data identifies five chronotype subtypes—three night owls and two early birds—each linked to distinct health and behavioral patterns, suggesting personalized sleep guidance beyond simple night-owl/early-bird categorizations.
Topics:world#chronotype#health#medicine-and-health-sciences#neuroscience#personalized-medicine#sleep
Night owl or early bird? Study finds sleep categories aren’t that simple McGill University
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