https://wikimd.org/index.php?action=history&feed=atom&title=Biological_clock 2026-04-25T06:48:22Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Biological_clock&diff=5352649&oldid=prev 2024-03-03T15:57:08Z

<p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Biological Clock&#039;&#039;&#039;<br /> <br /> A &#039;&#039;&#039;biological clock&#039;&#039;&#039; is an innate mechanism that controls the physiological activities of an organism which change predictably throughout the day. These activities include sleep-wake cycles, body temperature regulation, hormone production, and cell regeneration. Biological clocks are influenced by environmental cues, the most significant of which is daylight.<br /> <br /> == Overview ==<br /> <br /> Biological clocks are found in nearly every tissue and organ, and the master clock in humans is located in the [[hypothalamus]] of the brain. This master clock consists of groups of interacting molecules in about 20,000 brain cells called the [[suprachiasmatic nucleus]] (SCN).<br /> <br /> == Function ==<br /> <br /> The primary function of the biological clock is to regulate the timing of biological rhythms, the most familiar of which is the [[circadian rhythm]]. Circadian rhythms are 24-hour cycles that are part of the body&#039;s internal clock, running in the background to carry out essential functions and processes. One of the most important and well-known circadian rhythms is the sleep-wake cycle.<br /> <br /> == Disruption ==<br /> <br /> Disruption to the biological clock, such as through [[shift work]], travel across time zones, or irregular sleeping patterns, can have significant effects on the body&#039;s function. This can lead to health problems such as [[insomnia]], [[depression]], [[heart disease]], and [[cancer]]. <br /> <br /> == Research ==<br /> <br /> Research into the biological clock has led to the development of chronotherapy, which involves scheduling the administration of medication in sync with the body&#039;s rhythms to maximize effectiveness and minimize side effects.<br /> <br /> == See also ==<br /> * [[Chronobiology]]<br /> * [[Circadian rhythm sleep disorder]]<br /> * [[Jet lag]]<br /> * [[Seasonal affective disorder]]<br /> <br /> [[Category:Biology]]<br /> [[Category:Chronobiology]]<br /> [[Category:Sleep]]<br /> [[Category:Physiology]]<br /> <br /> {{biology-stub}}</div>

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