Reynolds’ primary research focuses on how and why individuals differ from one another in health and cognition, and that early-life and life-course factors that influence those differences.
Reynolds studies the apolipoprotein E (APOE) gene’s relationship to the development of Alzheimer’s and dementia. Her research considers how early one might see an impact from the gene’s presence; even before decline is evident.
Reynolds’ research considers the role of diet, exercise, and social engagement in aging. She also pursues greater understanding of the relationship between socioeconomic status and aging.
Reynolds studies centenarians and “blue zones,” the anthropological concept that describes the characteristic lifestyles and the environments of the world’s longest-lived people. She considers the genetic and environmental influences that shape health and well-being.