By Dr. Sanchari Sinha Dutta, Ph.D. Reviewed by Lauren Hardaker Oct 20 2025 Where you live could shape how your brain ages, with neighborhood inequality and environmental stressors leaving measurable biological traces linked to Alzheimer’s disease. Study: Associations of place-based social determinants of health with biomarkers of Alzheimer's disease and related dementias . Image credit: Bored Photography/Shutterstock.com A new study published in the journal Alzheimer's & Dementia: Behavior &