Two prospective cohorts found that metabolically unhealthy adults generally had higher dementia risk estimates regardless of obesity status. Metabolically healthy obesity was not associated with increased dementia risk in primary analyses, though findings varied across sensitivity analyses.

Recordings from four Parkinson’s disease patients linked cuneiform and pedunculopontine nuclei activity to distinct phases of gait initiation. Freezing episodes were preceded by disrupted mesencephalic timing, though clinical translation remains early.

The NAUTILUS trial met its primary safety endpoint for responsive centromedian thalamic stimulation in drug-resistant idiopathic generalized epilepsy. The prespecified primary effectiveness endpoint was not significant, while post hoc and 18-month outcomes showed sustained seizure reductions.

A large Veterans Health Administration study found that older adults with traumatic brain injury had elevated rates of several neurologic disorders both before and after injury. The findings support a bidirectional association between TBI and neurologic disease but do not establish causality.

A novel small molecule, CN045, promoted oligodendrocyte maturation and modest remyelination in preclinical models of multiple sclerosis. The findings support an emerging strategy aimed at repairing damaged myelin, though clinical applicability remains unproven.

Singer-songwriter Carly Simon described years of mobility limitations initially attributed to arthritis and joint replacement recovery before receiving a Parkinson’s disease diagnosis. Her experience highlights the diagnostic challenges created when evolving symptoms appear consistent with existing conditions.