Show Summary Details

Page of

PRINTED FROM OXFORD HANDBOOKS ONLINE ( © Oxford University Press, 2018. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Handbooks Online for personal use (for details see Privacy Policy and Legal Notice).

date: 05 August 2020

Abstract and Keywords

Circadian rhythms permit adaptations to predictable temporal environmental changes. Daily 24-hour rhythms are controlled by molecular clockworks within the brain that are set by the daily light–dark cycle. Downstream endocrine signaling conveys temporal information throughout the body. Mood disorders often present with disruptions in circadian clock-controlled responses, such as sleep and cortisol secretion, whereas circadian rhythm disruptions via jet lag, night-shift work, or light at night increase disordered affective symptoms. Evidence suggests strong associations between circadian rhythms and mental health, but only recently have studies begun to discover the direct interactions between the circadian system and mood regulation. This chapter provides an overview of circadian rhythms and the circadian regulation of the endocrine system. It discusses how the circadian and endocrine systems interact to affect depressive, anxious, and addictive responses. Finally, it discusses the potential detrimental effects the widespread use of nighttime light has for mood and cognition.

Keywords: mental health, circadian rhythm, diurnal rhythm, mood, depression, anxiety

Access to the complete content on Oxford Handbooks Online requires a subscription or purchase. Public users are able to search the site and view the abstracts and keywords for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can''t find the answer there, please contact us.