Results 11 to 20 of about 52,083 (330)

Causes of circadian rhythm disorders and methods of their treatment [PDF]

open access: yesJournal of Education, Health and Sport, 2022
The circadian rhythm is the main biological rhythm to which man is subject.During the day periods of activity and sleep, eating habits, body temperature, secretion of certain hormones and frequency of urination all change.In anatomical terms, the ...
Damian Machaj   +4 more
doaj   +3 more sources

Non-24-hour sleep-wake disorder revisited – A case study [PDF]

open access: yesFrontiers in Neurology, 2016
The human sleep-wake cycle is governed by two major factors: a homeostatic hourglass process (process S), which rises linearly during the day, and a circadian process C, which determines the timing of sleep in an approximately 24h rhythm in accordance to
Corrado eGarbazza   +6 more
doaj   +5 more sources

Circadian and Wakefulness-Sleep Modulation of Cognition in Humans [PDF]

open access: yesFrontiers in Molecular Neuroscience, 2012
Cognitive and affective processes vary over the course of the 24 hour day. Time of day dependent changes in human cognition are modulated by an internal circadian timekeeping system with a near-24-hour period.
Kenneth P Wright   +2 more
doaj   +4 more sources

Circadian Rhythm Sleep Disorder: Irregular Sleep Wake Rhythm [PDF]

open access: greenSleep Medicine Clinics, 2009
Irregular Sleep Wake Rhythm Disorder (ISWRD) is characterized by the relative absence of a circadian pattern in an individual's sleep-wake cycle. Significant changes in circadian regulation occur with aging and with neurodegenerative diseases, such as Alzheimer's disease prevalent in older adults, which are likely to contribute to the prevalence of ...
Phyllis C. Zee, Michael V. Vitiello
openalex   +4 more sources

Pathophysiology and pathogenesis of circadian rhythm sleep disorders [PDF]

open access: goldJournal of Physiological Anthropology, 2012
Metabolic, physiological and behavioral processes exhibit 24-hour rhythms in most organisms, including humans. These rhythms are driven by a system of self-sustained clocks and are entrained by environmental cues such as light-dark cycles as well as food intake.
Akiko Hida   +2 more
openalex   +6 more sources

Elevated Bile Acids Induce Circadian Rhythm Sleep Disorders in Chronic Liver Diseases. [PDF]

open access: goldCell Mol Gastroenterol Hepatol
Zhou L   +16 more
europepmc   +2 more sources

Relationship between circadian rhythm characteristics and chronotypes with multiple sclerosis: literature review

open access: yesNeurologijos seminarai, 2021
Circadian rhythm disorder is described as discrepancy between person’s sleep habits and usual, generally accepted sleep model during 24-hour period. Circadian rhythm disorders affect not only person’s working capacity during the day but also may reduce ...
Ieva Jonušaitė   +3 more
doaj   +1 more source

The role of microRNAs in the molecular link between circadian rhythm and autism spectrum disorder

open access: yesAnimal Cells and Systems, 2023
Circadian rhythm regulates physiological cycles of awareness and sleepiness. Melatonin production is primarily regulated by circadian regulation of gene expression and is involved in sleep homeostasis. If the circadian rhythm is abnormal, sleep disorders,
Ji Young Kim, Wanil Kim, Kyung-Ha Lee
doaj   +1 more source

Research advances in the study of sleep disorders, circadian rhythm disturbances and Alzheimer’s disease

open access: yesFrontiers in Aging Neuroscience, 2022
Although there are still no satisfactory answers to the question of why we need to sleep, a better understanding of its function will help to improve societal attitudes toward sleep. Sleep disorders are very common in neurodegenerative diseases and are a
Xiangyang Xiong   +5 more
doaj   +1 more source

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