- Source Document: Afternoon naps can clear up the brain and improve learning ability, University of Geneva, published via Medical Xpress, January 22, 2026.
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- Primary Study: Kristoffer D. Fehér et al., A nap can recalibrate homeostatic and associative synaptic plasticity in the human cortex, NeuroImage (2026). DOI: 10.1016/j.neuroimage.2026.121723