Genetic and Environmental Contributions to Loneliness in Adults: The Netherlands Twin Register Study

@article{Boomsma2005GeneticAE,
  title={Genetic and Environmental Contributions to Loneliness in Adults: The Netherlands Twin Register Study},
  author={Dorret I. Boomsma and Gonneke Willemsen and Conor V. Dolan and Louise C. Hawkley and John T. Cacioppo},
  journal={Behavior Genetics},
  year={2005},
  volume={35},
  pages={745-752}
}
Heritability estimates based on two small studies in children indicate that the genetic contribution to individual differences in loneliness is approximately 50%. Heritability estimates of complex traits such as loneliness may change across the lifespan, however, as the frequency, duration, and range of exposure to environmental influences accrues, or as the expression of genetic factors changes. We examined data on loneliness from 8,387 young adult and adult Dutch twins who had participated in… 
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