Adult friend search
Yes, the opportunities for blackmail and sleazy tabloid newspaper headlines are obvious.It’s easy for those of us who would never consider signing up for a site like Adult Friend Finder to smirk at the users’ discomfort, but we shouldn’t forget that both they and the Adult Friend Finder website itself are victims of a criminal act.We linked these genetic data with social network information from the original school-based surveys along with information about personal characteristics and social environments accumulated across Add Health follow-up waves.Analyses focus on a group of genetically homogeneous respondents identified as being of ancestral European origin (. In step 1, we test whether friends are more genetically similar to one another than to randomly selected peers.In contrast, an individual’s height is unassociated with the height genetics of peers.The degree to which genetics are implicated in the formation and consequences of social relationships is of growing interest to the new field of sociogenomics (1, 2).In a national sample of more than 5,000 American adolescents, we found evidence of social forces that act to make friends and schoolmates more genetically similar to one another compared with random pairs of unrelated individuals.This subtle genetic similarity was observed across the entire genome and at sets of genomic locations linked with specific traits—educational attainment and body mass index—a phenomenon we term “social–genetic correlation.” We also find evidence of a “social–genetic effect” such that the genetics of a person’s friends and schoolmates influenced their own education, even after accounting for the person’s own genetics.
Our study reported significant findings of a “social genome” that can be quantified and studied to understand human health and behavior.
Analysis of spousal genotypes suggests that spouses are more genetically similar to one another compared with random pairs of individuals in the population (3–9). In previous analyses, we estimated that genetic homogamy was about one-third the magnitude of educational homogamy (3), even when specifically examining education-associated genotypes (8).
However, even modest genetic homogamy can have implications for statistical and medical genetic models of inheritance and social models of spousal effects (10–12).
Specifically, we analyze data from the National Longitudinal Study of Adolescent to Adult Health (Add Health) (23).
Add Health surveyed 90,118 US adolescents aged 12–18 in 1994–1995 using a school-based sampling frame.