Heritability of daytime cortisol levels and cortisol reactivity in children

@inproceedings{Steptoe2009HeritabilityOD,
  title={Heritability of daytime cortisol levels and cortisol reactivity in children},
  author={Andrew Steptoe and Cornelia H. M. van Jaarsveld and Claudia Semmler and Robert Plomin and Jane Wardle},
  booktitle={Psychoneuroendocrinology},
  year={2009}
}
Individuals differ widely in cortisol output over the day and cortisol reactivity to challenge, both of which are relevant to disease risk. There is limited evidence concerning the heritability of these differences, so we evaluated the heritability of cortisol levels in the afternoon and cortisol reactivity using a twin design. The study involved 80 monozygotic (MZ) and 70 dizygotic (DZ) same-sex twin pairs aged 11.2 years on average. Salivary cortisol was measured in the afternoon at home… CONTINUE READING

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