Esther Friedman, PhD, a former Harvard RWJF Health & Society Scholar, is lead author on a study in which she and her colleagues explore the impact of living in a neighborhood with a higher percentage of older adults on cognitive function. The researchers found that those who live with a higher percentage of older adults had better cognitive function, although the neighborhood age structure did not seem to impact cognitive decline. Neighborhood cohesion and disorder may be important factors in explaining this association.