New studies illuminate brain function dynamics and cognitive health. Indiana University researchers linked reduced grip strength in early psychosis patients to disrupted brain network connectivity involving key regions like the anterior cingulate, sensorimotor cortex, and cerebellum, suggesting motor deficits as early indicators. University of Hamburg found that naps entering deep N2 sleep phase significantly boost sudden insight abilities, with 85.7% of participants experiencing eureka moments. Toho University researchers identified lowered α-synuclein protein levels in red blood cells of patients with Dementia with Lewy Bodies, potentializing early diagnostic biomarkers. Additional work unraveled the neural basis of cognitive fatigue via fMRI, highlighting roles for the right insula and prefrontal cortex in willpower and mental exhaustion.