Heather Bimonte-Nelson is a President’s Professor in the Behavioral Neuroscience and Comparative Psychology program in the Department of Psychology at Arizona State University. For more than three decades, she has conducted preclinical evaluations of multiple domains of cognitive function as related to aging, with a special focus on transitional and surgical menopause, and exogenous and endogenous hormone exposures across the lifespan. She has evaluated hormone effects on the brain and behavior from early development until old age, with her earlier work showing that female brain organization is actively feminized by estrogens, and that estrogen exposures across the lifespan impact the female phenotype.