The 2026 Neurobiology of Aging and Alzheimer’s Disease Symposium convenes researchers, clinicians, and trainees to examine the biological processes of brain aging and their role in neurodegenerative disease. The program highlights cutting-edge work on age-related neural vulnerability, biomarkers of cognitive decline, and therapeutic strategies aimed at promoting healthy aging and delaying Alzheimer’s disease. Through interdisciplinary dialogue, the symposium fosters collaboration to advance understanding and intervention across the lifespan.