Tomiko Yoneda
In this talk, I will present a series of studies emphasizing the importance of social connections for health across individuals, couples, populations, and timescales. Using a coordinated analysis framework spanning 10 longitudinal studies representing 18 countries, I first examine the independent and joint effects of loneliness and social isolation on cognitive transitions and mortality risk. Synthesized findings indicate that loneliness, rather than isolation, is the more potent predictor of cognitive impairment and mortality. I then turn to dyadic daily and momentary processes across three intensive longitudinal datasets from Canada and Germany. Results show that partners’ shared and individually experienced emotions are linked with cortisol secretion, illustrating how experiences within close relationships can “get under the skin” to support healthier aging and development. Together, these findings highlight the multilevel pathways through which high-quality social connections shape mind, body, and health, reminding us that we are, in many ways, better together.
Dr. Yoneda is an Assistant Professor in the Department of Psychology, where she directs the Healthspan Lab. Her research investigates the role of personality and interpersonal processes in optimal aging, with a focus on the mechanisms that link social and psychological factors to health and cognition. Ultimately, her goal is to uncover ways by which older adults may shape their own independence and well-being at a juncture when intervention is still possible.