Sleep duration and personality in Croatian twins.

  title={Sleep duration and personality in Croatian twins.},
  author={Ana Butkovi{\'c} and Tena Vukasovi{\'c} and Denis Bratko},
  journal={Journal of sleep research},
  volume={23 2},
The objective of this study was to examine which genetic and environmental influences contribute to individual differences in sleep duration in a sample of Croatian adolescent/early adult twins, as well as to investigate the relationship between personality and sleep duration. Participants included 339 twin pairs (105 monozygotic and 234 dizygotic) aged between 15 and 22 years. They reported on their average sleep duration and personality. The broad heritability estimate (additive and non… CONTINUE READING
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