Researchers used cryo-electron microscopy to show that tau filaments have distinguishable ordered core structures across diseases, including vacuolar tauopathy variants, and reported it is possible to change filament structure to potentially reduce spread-related virulence. In Parkinson’s disease, a resting-state fMRI study reported that brain network “fingerprints” detectable years before symptoms can identify individuals at genetic risk. For dementia care, a separate imaging-and-clinical signal tied sleep disruption to temporal lobe dementia variants, positioning sleep as a clinically important, previously under-characterized feature. These studies collectively tighten the link between molecular structure, neurocircuit biomarkers, and clinically observable symptoms—supporting earlier identification and potential intervention targeting disease propagation.