Circadian rhythm is the body’s built-in daily timing system, operating on an approximately 24-hour cycle that influences sleep, alertness, hormone release, metabolism, and other bodily functions. This timing system is coordinated by a small cluster of neurons in the brain called the suprachiasmatic nucleus, which adjusts the body’s internal clock primarily in response to light signals.
verifiedCite
While every effort has been made to follow citation style rules, there may be some discrepancies.
Please refer to the appropriate style manual or other sources if you have any questions.
Select Citation Style