Circadian Rhythm
A circadian rhythm (/sərˈkeɪdiən/), or circadian cycle, is a natural, internal process that regulates the sleep–wake cycle and repeats roughly every 24 hours. It can refer to any process that originates within an organism (is endogenous) and responds to the environment (entrained by the environment).
Cluster Number:
Wiki Number: W042
Diagnosis: Circadian Rhythm Sleep Disorder
US Patients:
World Patients:
Sex Ratio:
Age Onset:
Brain Area: suprachiasmic nucleus
Symptoms: falling asleep in daytime; biological clock misaligned with circadian rhythm.
Progression:
Causes: intrinsic: delayed, advanced, irregular or blindness; extrinsic: shift–work, jet-lag; Alzheimer’s often destroys patterns
Medications: None listed.
Therapies: chronotherapy-delay to normalize; light therapy; hypnotics; melotonin in evening; dark therapy
Youtube Video: Circadian Rhythm Disorders
Amazon or Library Book: Sleep . . . Natural Remedies
Amazon or Library Book:
How to Sleep Well
Click the book to link or order from Amazon.
Click the book to link or order from Amazon.
Support Group: circadiansleepdisorders.org; Email-csd-n@cst-n.org (Circadian Sleep Disorders Network)
4 CURRENT ARTICLES
FROM PUBMED
The world-wide medical research
reports chosen for each diagnosis
Clicking each title opens the
PubMed article’s summary-abstract.
- Dexamethasone is a regulator of clock genes in testicular peritubular cellsby Harald Welter on November 7, 2024
CONCLUSION: The results indicate that an internal clock system likely exists in peritubular cells of the testis and that Dex, via testicular GR expressed by peritubular cells and other somatic cells, is a strong regulator of this system. In a physiological situation, GC thus may be important regulators of the testicular clock, while in a situation of prolonged stress or GC-medication, derangements in clock gene expression may result.
- How Light at Night Sets the Circalunar Clock in the Marine Midge Clunio marinusby Carolina M Peralta on November 7, 2024
Many organisms inhabiting the interface between land and sea have evolved biological clocks corresponding to the period of the semilunar (14.77 days) or the lunar (29.53 days) cycle. Since tidal amplitude is modulated across the lunar cycle, these circasemilunar or circalunar clocks not only allow organisms to adapt to the lunar cycle, but also to specific tidal situations. Biological clocks are synchronized to external cycles via environmental cues called zeitgebers. Here, we explore how light...
- Shifting Rhythms: A Systematic Review Exploring the Multifaceted Effects of Shift Work and Circadian Disruption on Employee Cardiovascular Healthby Ayesha Hanif on November 7, 2024
Shift work has long been studied as a contributing risk factor for cardiovascular disease. This study aims to provide a comprehensive summary of data regarding shiftwork and its impact on the cardiovascular system from the last decade. It explores the association of shift schedules with multiple aspects of cardiovascular disease and the physiological processes that lead up to it. It also identifies gaps in current knowledge regarding the topic. Two hundred and sixty-eight articles were gathered...
- Chronobiological perspectives and meteorological associations in symptomatic popliteal artery aneurysmsby Maria Elisabeth Leinweber on November 6, 2024
The potential influence of circadian rhythm, seasonal variations, and alterations in meteorological parameters has been studied across various vascular events. However, there is a lack of evidence on the potential chronobiological impacts on thromboembolic events related to the most common peripheral aneurysm, the popliteal artery aneurysm (PAA). Data was obtained from a German PAA registry and the German Meteorological Service (Deutscher Wetterdienst). In this observational cohort study...