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Article

Genetic and Environmental Influences on Cortisol Regulation Across Days and Contexts in Middle-Aged Men

17 Mar 2010

Abstract excerpt

Cortisol is an indicator of hypothalamic-pituitary-adrenal axis responsivity to stress, but few twin studies have examined the heritability of cortisol concentrations in adults across the diurnal cycle and in different contexts. Saliva samples were provided by 783 middle-aged male twins on one laboratory and two home days as part of the Vietnam Era Twin Study of Aging. Significant cortisol heritability estimates...

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PMID: 20238238
DOI: 10.1007/s10519-010-9352-2

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