New research has provided more evidence that relationships affect health (read our previous posts on this subject here).1 The researchers examined data from four large-scale studies that collectively followed thousands of Americans over time. One of the studies followed adolescents, another followed young-to-mid-adults (aged 25-64), and the last two followed older adults (aged 50+), resulting in more than 14,000 participants across the lifespan. Each study measured various aspects of individuals’ social relationships, such as social support (e.g., reliability of family members), social integration (e.g., frequency of contact with other people), and social strain (e.g., frequency of criticism from friends). Each study also included health outcome measures such as blood pressure, waist circumference, and body mass. These outcomes are associated with how the body responds to stress and are predictive of disease and mortality.
Overall, the researchers found that the more socially integrated people were (i.e., the more they socialized with others and different kinds of others) and the better quality their relationships (i.e., with lots of social support and little social strain), the better their health throughout the lifespan.