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Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".

Identifieur interne : 000682 ( PubMed/Corpus ); précédent : 000681; suivant : 000683

Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".

Auteurs : Brigitte M. Kudielka ; Ilona S. Federenko ; Dirk H. Hellhammer ; Stefan Wüst

Source :

Biological psychology [ 0301-0511 ] ; 2006.

RBID : pubmed:16236420

English descriptors

KwdEn :
- Adult, Circadian Rhythm (physiology), Humans, Hydrocortisone (analysis), Hypothalamo-Hypophyseal System (physiology), Male, Pituitary-Adrenal System (physiology), Saliva (chemistry), Surveys and Questionnaires, Twins (physiology), Wakefulness (physiology).
MESH :
- chemical , analysis : Hydrocortisone.
- chemistry : Saliva.
- physiology : Circadian Rhythm, Hypothalamo-Hypophyseal System, Pituitary-Adrenal System, Twins, Wakefulness.
- Adult, Humans, Male, Surveys and Questionnaires.

Abstract

We investigated salivary cortisol profiles in the first hour after awakening in morning versus evening chronotypes. Chronotypes were defined by Horne and Ostberg's Owl-and-Lark-Questionnaire. In a sample of 112 healthy, day-active young men, we identified 9 morning and 29 evening chronotypes. Saliva samples were collected 0, 30, 45, and 60min after awakening on 2 consecutive days. Log-transformed cortisol levels were analyzed with General Linear Model procedures (GLMs) and awakening time and sleep duration were entered as covariates. On both days, a significant main effect of chronotype emerged (both p=0.02), and this effect could not be explained by differences in awakening time or sleep duration. The present data support the idea that morning relative to evening chronotypes might show higher cortisol levels in the first hour after awakening. In sum, individual chronotype should be acknowledged as one further possible source of interindividual variability in the cortisol rise after awakening.

DOI: 10.1016/j.biopsycho.2005.08.003
PubMed: 16236420

Links to Exploration step

pubmed:16236420

Le document en format XML

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<author><name sortKey="Kudielka, Brigitte M" sort="Kudielka, Brigitte M" uniqKey="Kudielka B" first="Brigitte M" last="Kudielka">Brigitte M. Kudielka</name>
<affiliation><nlm:affiliation>Department of Clinical and Theoretical Psychobiology, University of Trier, Johanniterufer 15, D-54290 Trier, Germany. kudielka@uni-trier.de</nlm:affiliation>
</affiliation>
</author>
<author><name sortKey="Federenko, Ilona S" sort="Federenko, Ilona S" uniqKey="Federenko I" first="Ilona S" last="Federenko">Ilona S. Federenko</name>
</author>
<author><name sortKey="Hellhammer, Dirk H" sort="Hellhammer, Dirk H" uniqKey="Hellhammer D" first="Dirk H" last="Hellhammer">Dirk H. Hellhammer</name>
</author>
<author><name sortKey="Wust, Stefan" sort="Wust, Stefan" uniqKey="Wust S" first="Stefan" last="Wüst">Stefan Wüst</name>
</author>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".</title>
<author><name sortKey="Kudielka, Brigitte M" sort="Kudielka, Brigitte M" uniqKey="Kudielka B" first="Brigitte M" last="Kudielka">Brigitte M. Kudielka</name>
<affiliation><nlm:affiliation>Department of Clinical and Theoretical Psychobiology, University of Trier, Johanniterufer 15, D-54290 Trier, Germany. kudielka@uni-trier.de</nlm:affiliation>
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<author><name sortKey="Federenko, Ilona S" sort="Federenko, Ilona S" uniqKey="Federenko I" first="Ilona S" last="Federenko">Ilona S. Federenko</name>
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<author><name sortKey="Hellhammer, Dirk H" sort="Hellhammer, Dirk H" uniqKey="Hellhammer D" first="Dirk H" last="Hellhammer">Dirk H. Hellhammer</name>
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<author><name sortKey="Wust, Stefan" sort="Wust, Stefan" uniqKey="Wust S" first="Stefan" last="Wüst">Stefan Wüst</name>
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<series><title level="j">Biological psychology</title>
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<term>Circadian Rhythm (physiology)</term>
<term>Humans</term>
<term>Hydrocortisone (analysis)</term>
<term>Hypothalamo-Hypophyseal System (physiology)</term>
<term>Male</term>
<term>Pituitary-Adrenal System (physiology)</term>
<term>Saliva (chemistry)</term>
<term>Surveys and Questionnaires</term>
<term>Twins (physiology)</term>
<term>Wakefulness (physiology)</term>
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<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Hydrocortisone</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Circadian Rhythm</term>
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<front><div type="abstract" xml:lang="en">We investigated salivary cortisol profiles in the first hour after awakening in morning versus evening chronotypes. Chronotypes were defined by Horne and Ostberg's Owl-and-Lark-Questionnaire. In a sample of 112 healthy, day-active young men, we identified 9 morning and 29 evening chronotypes. Saliva samples were collected 0, 30, 45, and 60min after awakening on 2 consecutive days. Log-transformed cortisol levels were analyzed with General Linear Model procedures (GLMs) and awakening time and sleep duration were entered as covariates. On both days, a significant main effect of chronotype emerged (both p=0.02), and this effect could not be explained by differences in awakening time or sleep duration. The present data support the idea that morning relative to evening chronotypes might show higher cortisol levels in the first hour after awakening. In sum, individual chronotype should be acknowledged as one further possible source of interindividual variability in the cortisol rise after awakening.</div>
</front>
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<DateCreated><Year>2006</Year>
<Month>03</Month>
<Day>20</Day>
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<DateCompleted><Year>2006</Year>
<Month>09</Month>
<Day>08</Day>
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<DateRevised><Year>2015</Year>
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<Title>Biological psychology</Title>
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<ArticleTitle>Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".</ArticleTitle>
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<Abstract><AbstractText>We investigated salivary cortisol profiles in the first hour after awakening in morning versus evening chronotypes. Chronotypes were defined by Horne and Ostberg's Owl-and-Lark-Questionnaire. In a sample of 112 healthy, day-active young men, we identified 9 morning and 29 evening chronotypes. Saliva samples were collected 0, 30, 45, and 60min after awakening on 2 consecutive days. Log-transformed cortisol levels were analyzed with General Linear Model procedures (GLMs) and awakening time and sleep duration were entered as covariates. On both days, a significant main effect of chronotype emerged (both p=0.02), and this effect could not be explained by differences in awakening time or sleep duration. The present data support the idea that morning relative to evening chronotypes might show higher cortisol levels in the first hour after awakening. In sum, individual chronotype should be acknowledged as one further possible source of interindividual variability in the cortisol rise after awakening.</AbstractText>
</Abstract>
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<ForeName>Brigitte M</ForeName>
<Initials>BM</Initials>
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<MeshHeading><DescriptorName UI="D008297" MajorTopicYN="N">Male</DescriptorName>
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</MeshHeading>
<MeshHeading><DescriptorName UI="D014851" MajorTopicYN="N">Wakefulness</DescriptorName>
<QualifierName UI="Q000502" MajorTopicYN="Y">physiology</QualifierName>
</MeshHeading>
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Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".

Morningness and eveningness: the free cortisol rise after awakening in "early birds" and "night owls".

Source :

English descriptors

Abstract

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki