Circadian Rhythm

Circadian Rhythm is the regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, feeding, etc. This rhythm seems to be set by a 'biological clock' which seems to be set by recurring daylight and darkness.
How Does the Suprachiasmatic Nucleus (SCN) Control Circadian Rhythm?

Circadian rhythms are biological cycles within organisms that allow them to adjust their physiology and behavior to anticipate and adapt to changes in the outside environment. Circadian rhythms are maintained with the help of circadian clocks, the main circadian clock in mammals is the suprachiasmatic nucleus (SCN).

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Latest Circadian Rhythm News and Research

Researchers identify a neural pathway that links circadian clock, stress, and wakefulness

Researchers identify a neural pathway that links circadian clock, stress, and wakefulness

Wearing blue-light glasses before sleeping can improve sleep quantity and quality

Wearing blue-light glasses before sleeping can improve sleep quantity and quality

Researchers identify a novel protein that repairs DNA

Researchers identify a novel protein that repairs DNA

Regular moderate physical exercise can significantly reduce cancer risk

Regular moderate physical exercise can significantly reduce cancer risk

Tuned lighting helps improve sleep in nursing home residents, study finds

Tuned lighting helps improve sleep in nursing home residents, study finds

Circadian rhythm affects SARS-CoV-2 infection and host immune response

Circadian rhythm affects SARS-CoV-2 infection and host immune response

Study: Lipoic acid supplements promote weight loss in certain obese adults

Study: Lipoic acid supplements promote weight loss in certain obese adults

Increase in blood sodium levels influences the biological clock of mice

Increase in blood sodium levels influences the biological clock of mice

Researchers develop less invasive genetic tools to understand cellular activity

Researchers develop less invasive genetic tools to understand cellular activity

Sleep deprivation reduces positive feelings

Sleep deprivation reduces positive feelings

Sleeping less than normal can reduce positive feelings

Sleeping less than normal can reduce positive feelings

Irregular circadian rhythm in older adults associated with increased risk of Parkinson's disease

Irregular circadian rhythm in older adults associated with increased risk of Parkinson's disease

Researchers identify link between methylation and the body's circadian rhythms

Researchers identify link between methylation and the body's circadian rhythms

Recipients of 2020 Sleep Research Society awards announced

Recipients of 2020 Sleep Research Society awards announced

Scientists demonstrate importance of aligning internal circadian clock with day-night cycles

Scientists demonstrate importance of aligning internal circadian clock with day-night cycles

Study identifies three unknown genetic mechanisms that cause myopia

Study identifies three unknown genetic mechanisms that cause myopia

Teen marijuana use associated with insomnia later on

Teen marijuana use associated with insomnia later on

Neurotensinergic neurons in the brainstem regulate non-REM sleep

Neurotensinergic neurons in the brainstem regulate non-REM sleep

Drosophila flies lose long-term memory of traumatic event when kept in the dark, study shows

Drosophila flies lose long-term memory of traumatic event when kept in the dark, study shows

Irregular sleep could be linked to poor cardiovascular health

Irregular sleep could be linked to poor cardiovascular health