tag:blogger.com,1999:blog-6865120441831183299.post2630594795042442344..comments2024-02-28T04:07:10.479-05:00Comments on Sleep Education Blog: George Dawes Green’s Free-Running Circadian Rhythm Sleep DisorderAASMhttp://www.blogger.com/profile/14562426176820434247noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6865120441831183299.post-58227182242000566552010-03-09T15:49:35.116-05:002010-03-09T15:49:35.116-05:00What is it?
Free-running (nonentrained) type is o...What is it?<br /><br />Free-running (nonentrained) type is one of several circadian rhythm disorders. People with these disorders have sleep times that seem to be out of alignment. Their sleep patterns do not follow the “normal” sleep times at night.<br /><br />The sleep time of people who have free-running (nonentrained) type shifts a little later every day. Sleep time and wake up time continue to move later and later every day. Sleep times go in and out of alignment with other people as weeks go by.<br /><br />Normal people have a circadian rhythm that is longer than 24 hours. Every day, morning light and other behaviors reset the sleep-wake clock to a 24 hour schedule. Without light and this clock resetting, people’s sleep time will drift later and later. This is why many people who have free-running (nonentrained) type are blind. Light is the major influence on resetting the brain’s clock.<br /><br />As your sleep pattern drifts a little later every day, free-running (nonentrained) type can be confused with other circadian rhythm disorders. As sleep time drifts later, you do not fall asleep until morning. It may seem like you have delayed sleep phase disorder. After days of later and later bedtime, you are sleeping during the day. After more days, you begin to sleep in the early afternoon and evening. This makes it look like you have advanced sleep phase disorder. After more days, you are back to sleeping during normal night hours. Then the drifting sleep time continues around the clock again. The sleep time is not broken up into pieces as with irregular sleep-wake type. The sleep time is only broken if there are outside disturbances. Your main sleep time does not occur at the same time every day. It continues to get later and later every day.sleep sex disorderhttp://www.sleepsexdisorder.net/noreply@blogger.com