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Article: How Your Circadian Rythm Rules Your Life
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<blockquote data-quote="Nelson Vergel" data-source="post: 45299" data-attributes="member: 3"><p>Circadian rhythm sleep disorders all involve a problem in the timing of when a person sleeps and is awake. The human body has a master circadian clock in a control center of the brain known as the <em>suprachiasmatic nucleus </em>(SCN). This internal clock regulates the timing of such body rhythms as temperature and hormone levels. The primary circadian rhythm that this body clock controls is the sleep-wake cycle. The circadian clock functions in a cycle that lasts a little longer than 24 hours.</p><p>The circadian clock is “set” primarily by visual cues of light and darkness that are communicated along a pathway from the eyes to the SCN. This keeps the clock synchronized to the 24-hour day. Other time cues, know as <em>zeitgebers</em>, also can influence the clock’s timing. These cues include meal and exercise schedules. Circadian rhythms and their sensitivity to time cues may change as a person ages.</p><p>Each circadian rhythm sleep disorder involves one of these two problems:</p><p> </p><p>• You have a hard time initiating sleep.</p><p>• You struggle to maintain sleep, waking up frequently during the night.</p><p>• You tend to wake up too early and are unable to go back to sleep.</p><p>• You sleep is nonrestorative or of poor quality.</p><p> </p><p><strong><u>Types of Circadian Rhythm Sleep Disorders</u></strong></p><p><strong><u></u></strong></p><p><strong><u></u></strong>Read attached file (Registered members only)</p></blockquote><p></p>
[QUOTE="Nelson Vergel, post: 45299, member: 3"] Circadian rhythm sleep disorders all involve a problem in the timing of when a person sleeps and is awake. The human body has a master circadian clock in a control center of the brain known as the [I]suprachiasmatic nucleus [/I](SCN). This internal clock regulates the timing of such body rhythms as temperature and hormone levels. The primary circadian rhythm that this body clock controls is the sleep-wake cycle. The circadian clock functions in a cycle that lasts a little longer than 24 hours. The circadian clock is “set” primarily by visual cues of light and darkness that are communicated along a pathway from the eyes to the SCN. This keeps the clock synchronized to the 24-hour day. Other time cues, know as [I]zeitgebers[/I], also can influence the clock’s timing. These cues include meal and exercise schedules. Circadian rhythms and their sensitivity to time cues may change as a person ages. Each circadian rhythm sleep disorder involves one of these two problems: • You have a hard time initiating sleep. • You struggle to maintain sleep, waking up frequently during the night. • You tend to wake up too early and are unable to go back to sleep. • You sleep is nonrestorative or of poor quality. [B][U]Types of Circadian Rhythm Sleep Disorders [/U][/B]Read attached file (Registered members only) [/QUOTE]
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General Health & Fitness
Health & Wellness
Article: How Your Circadian Rythm Rules Your Life
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