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 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

Later school start times associated with drop in vehicle crashes involving teen drivers

Later school start times associated with drop in vehicle crashes involving teen drivers

Targeting one's internal clock could prevent or slow breast cancer progression

Targeting one's internal clock could prevent or slow breast cancer progression

Novel melatonin receptor molecules potentially address circadian rhythm disturbances

Novel melatonin receptor molecules potentially address circadian rhythm disturbances

Shift workers at increased risk for sleep disorders and metabolic syndrome

Shift workers at increased risk for sleep disorders and metabolic syndrome

Researchers receive $1 million grant to study effects of bacteria on the brain

Researchers receive $1 million grant to study effects of bacteria on the brain

Fat cells can sense light, not getting enough raises risk of metabolic diseases

Fat cells can sense light, not getting enough raises risk of metabolic diseases

Circadian clock genes are involved in healing from surgery, study shows

Circadian clock genes are involved in healing from surgery, study shows

Blue light exposure therapy can aid in healing people with mTBI

Blue light exposure therapy can aid in healing people with mTBI