Overview
I am a geroscientist and epidemiologist with expertise in cognitive health and neurodegenerative conditions, particularly Alzheimer’s disease and related dementias. My research program examines how the exposome influences brain health throughout the lifespan, with a specific focus on environmental exposures, alongside social, behavioral, and biological factors. My work has investigated traumatic brain injury, metabolic biomarkers, resilience, and cognitive training. Through these efforts, I aim to identify modifiable pathways that promote healthy cognitive aging, reduce risk, and delay disease progression across diverse aging populations.
A central focus of my scholarship is to improve the inclusiveness, reach, and translational impact of aging and brain health research. My work addresses persistent gaps in participation and representation among older adults from communities historically under-engaged in scientific studies, to ensure that research findings are generalizable, equitable, and relevant to the broader U.S. population. In parallel with my research program, I serve as Faculty Operational Director for the North Carolina Registry for Brain Health, where I lead statewide initiatives to expand research engagement, strengthen community and institutional partnerships, and connect older adults with brain health studies. I also coordinate the Duke Aging Center’s T32 fellowship program and am deeply committed to mentoring students, postdoctoral fellows, and early-career investigators. Across these roles, I aim to advance rigorous, community-informed science while cultivating the next generation of scholars prepared to address the complex needs of an aging society.
Current Duke Appointments & Affiliations
Recent Scholarly Works
The impact of volunteering on cognition and cognitive decline in older diverse cohorts: KHANDLE and STAR.
Journal article Alzheimers Dement · January 2026 INTRODUCTION: Volunteering is linked to cognitive benefits in aging, but evidence in diverse populations is limited. METHODS: We examined volunteering and cognition in Kaiser Healthy Aging and Diverse Life Experiences Study/Study of Healthy Aging in Africa ... Full text Open Access Link to item CiteAssessing Cognitive and Gut Health in North Carolina’s Rural Indigenous Population via Mobile Clinic
Conference Innovation in Aging · December 1, 2025 AbstractObjectiveAlzheimer’s disease disproportionately affects communities of color, including rural North Carolina. These com ... Full text CiteModeling the importance of life exposure factors on memory performance in diverse older adults: A machine learning approach.
Journal article Alzheimers Dement · August 2025 INTRODUCTION: Many health life exposure factors (LEFs) influence cognitive decline and dementia incidence, but their relative importance to episodic memory (an early indicator of cognitive decline) among diverse older adults is unclear. We used machine lea ... Full text Open Access Link to item CiteRecent Grants
Duke/UNC ADAR Program
Inst. Training Prgm or CMEMentor · Awarded by National Institutes of Health · 2024 - 2029NC Registry for Brain Health Phase 5
Public ServiceInvestigator · Awarded by NC DHHS · 2023 - 2027Cognitive Training to Reduce Cognitive Impairment: The PACT Trial
ResearchCo Investigator · Awarded by University of South Florida · 2021 - 2027View All Grants