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	<id>https://wikimd.org/index.php?action=history&amp;feed=atom&amp;title=Chronobiotic</id>
	<title>Chronobiotic - Revision history</title>
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	<updated>2026-04-25T17:42:24Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://wikimd.org/index.php?title=Chronobiotic&amp;diff=6501061&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Chronobiotic&amp;diff=6501061&amp;oldid=prev"/>
		<updated>2025-03-17T07:01:51Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:01, 17 March 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l23&quot;&gt;Line 23:&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Chronobiotic&amp;diff=6220524&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Chronobiotic&amp;diff=6220524&amp;oldid=prev"/>
		<updated>2025-02-10T11:38:57Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 11:38, 10 February 2025&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l22&quot;&gt;Line 22:&lt;/td&gt;
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&lt;/table&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
	<entry>
		<id>https://wikimd.org/index.php?title=Chronobiotic&amp;diff=5378100&amp;oldid=prev</id>
		<title>Prab: CSV import</title>
		<link rel="alternate" type="text/html" href="https://wikimd.org/index.php?title=Chronobiotic&amp;diff=5378100&amp;oldid=prev"/>
		<updated>2024-03-09T21:23:46Z</updated>

		<summary type="html">&lt;p&gt;CSV import&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;&amp;#039;Chronobiotic&amp;#039;&amp;#039;&amp;#039; is a term used in [[chronopharmacology]] to describe substances that can shift the timing of the [[biological clock]]. These substances can be used to adjust the [[circadian rhythm]] in individuals suffering from [[jet lag]], [[shift work disorder]], and certain [[sleep disorders]]. &lt;br /&gt;
&lt;br /&gt;
==Definition==&lt;br /&gt;
A &amp;#039;&amp;#039;&amp;#039;chronobiotic&amp;#039;&amp;#039;&amp;#039; is a substance that, when administered, affects the timing of the biological clock. The term is derived from the Greek words &amp;quot;chronos&amp;quot; (time) and &amp;quot;bios&amp;quot; (life). Chronobiotics can either advance or delay the timing of the biological clock, depending on the time of administration.&lt;br /&gt;
&lt;br /&gt;
==Mechanism of Action==&lt;br /&gt;
Chronobiotics work by influencing the [[suprachiasmatic nucleus]] (SCN), the part of the brain that controls the circadian rhythm. The SCN responds to light and dark signals from the environment and adjusts the body&amp;#039;s internal clock accordingly. Chronobiotics can mimic these signals, causing the SCN to adjust the timing of the circadian rhythm.&lt;br /&gt;
&lt;br /&gt;
==Examples==&lt;br /&gt;
[[Melatonin]] is the most well-known chronobiotic. It is a hormone produced by the [[pineal gland]] in response to darkness, and it signals the body to prepare for sleep. Other chronobiotics include [[caffeine]], which can delay the timing of the circadian rhythm, and [[light therapy]], which can advance or delay the circadian rhythm depending on the timing of exposure.&lt;br /&gt;
&lt;br /&gt;
==Applications==&lt;br /&gt;
Chronobiotics can be used to treat a variety of conditions related to disruptions in the circadian rhythm. These include jet lag, shift work disorder, and certain sleep disorders such as [[delayed sleep phase syndrome]] and [[advanced sleep phase syndrome]]. Chronobiotics can also be used to help individuals adjust to new time zones or work schedules.&lt;br /&gt;
&lt;br /&gt;
==See Also==&lt;br /&gt;
* [[Chronotherapy]]&lt;br /&gt;
* [[Chronopharmacology]]&lt;br /&gt;
* [[Circadian rhythm sleep disorders]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Chronobiology]]&lt;br /&gt;
[[Category:Pharmacology]]&lt;br /&gt;
[[Category:Sleep disorders]]&lt;br /&gt;
{{medicine-stub}}&lt;/div&gt;</summary>
		<author><name>Prab</name></author>
	</entry>
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