Histories of social engagement and adult cognition: midlife in the U.S. study.

Objectives: To evaluate whether social contacts, support, and social strain/conflict are related to executive function and memory abilities in middle-age and older adults.

Methods: Longitudinal data on social contacts, support, and strain/conflict were examined in relation to executive function and memory at ages 35-85 years using data from the national Midlife in the U.S.