My research is driven by a simple question: how can we help people maintain healthy brains and independence as they age? As a cognitive gerontologist, neuroscientist, and clinical trialist, I study lifestyle and behavioral interventions that may reduce the risk of Alzheimer's disease and other age-related cognitive conditions. A central focus of my work is precision brain health: identifying the genetic, biological, and environmental factors that influence who responds to interventions and why, recognizing that a "one-size-fits-all" approach is unlikely to be effective for everyone. At Thomas Jefferson University, where I serve as Assistant Professor of Health Science and Director of the B.R.A.I.N. (Bern's Research in Applied Interdisciplinary Neuroscience) Collaborative, I work with diverse communities to identify factors that promote resilience and healthy cognitive aging. Beyond research, I am deeply committed to mentorship, community engagement, and training the next generation of researchers and clinician-scientists.