Parkinson’s disease has a years-to-decades prodromal stage where motor symptoms haven’t yet emerged but pathology is accumulating. A 2026 review by Schaeffer et al. synthesizes the case for (and limits of) intervening during this window — with implications for high-risk individuals weighing whether to enter preventive trials.1 Research Highlights Prodromal Parkinson’s disease is the period …
Until recently, Alzheimer’s pathology could only be confirmed in living patients via PET imaging or lumbar puncture. Plasma p-tau217 changed that calculus — but how to interpret a positive result depends substantially on APOE genotype.1 Research Highlights Plasma p-tau217 is a blood biomarker that rises years before Alzheimer’s symptoms. The 2024 Alzheimer’s Association revised criteria …
Sensation seeking has long been linked to risky behaviors in teens, but its role in eating-disorder psychopathology has been mixed. A 2026 study by Bogner and colleagues clarifies the picture in 400 German adolescents: sensation seeking matters for disordered eating, but the effects are moderated by weight status and emotional symptoms.1 Research Highlights Sensation seeking …
Betrayal does not just make people less trusting. It can also change what they pay attention to afterward. After a negative social surprise, people may start scanning more closely for signs of threat, which can make distrust easier to confirm and harder to undo. Research Highlights Selective observation: Son and Yoo 2026 modeled social inference …
Brief screening tools for early dementia risk are essential in primary care. A 2026 study by You et al. evaluated the AD8 informant questionnaire in older Chinese-speaking adults in Australia, mapping how cognitive, functional, social, and language-barrier risks stack before dementia is formally diagnosed.1 Research Highlights The AD8 dementia screening interview is an 8-item informant-based …
First-generation antipsychotic (FGA) shortages are not just pharmacy annoyances; they force medication changes in people who may have taken years to stabilize on a tolerable regimen. Research Highlights 95,968 patients: Tabah 2026 used Komodo claims data to study people with psychotic-spectrum diagnoses taking shortage-affected first-generation antipsychotics. Switching was not evenly distributed: molindone reached 100% switching, …
An ear-clip that modulates mood by stimulating the vagus nerve has obvious appeal — but the evidence base for non-invasive tVNS in depression has been mixed for a decade. A 2026 cross-over RCT by Forbes et al. sharpens what specifically tVNS does well.1 Research Highlights Transcutaneous vagus nerve stimulation (tVNS) is a non-invasive ear-electrode version …