Last Updated on Mar 11, 2020

Classification of Sleep Disorders - Circadian Rhythm Disorders

"Circadian” in Latin means ‘for about a day’. Any disturbance of the body clock can lead to Circadian rhythm sleep disorders.

The body clock is located in the hypothalamus region of the brain in an area called the Supra chaismatic Nucleus. Signals are transmitted to the body clock to convey sleep time and wake up time. Sunlight, by far is the most potent of wake up signals (also called ‘Zeitgeber’). Weather, darkness and sound are other significant signals received by the body. Circadian rhythm disorders are caused when the body clock is unable to recognize and interpret these signals correctly.

Some of the circadian rhythm disorders are-

  • Jet lag
  • Shift work sleep disorder
  • Irregular sleep-wake pattern
  • Delayed sleep phase syndrome
  • Advanced sleep phase syndrome
  • Non-24-hour sleep-wake disorder

Symptoms of circadian rhythm sleep disorders include-

  • Insomnia
  • Excessive daytime sleepiness

Treatment of circadian rhythm sleep disorders include-

  • Short term use of sedatives

References:

  1. Coren, Stanley. Sleep Thieves: An Eye-Opening Exploration into the Science and Mysteries of Sleep. New York: The Free Press; 1996, p. 287.
  2. Sleep Disorders - (http://www.nlm.nih.gov/medlineplus/sleepdisorders.html)

Comments

Nuvigilshop Thursday, April 2, 2015

Sleep disorders are commonly seen problem in many people. And it happens due to irregular routine, changes in work shift etc. But don’t worry you can able to get rid of from all kinds of sleep issues with the help of Waklert and Nuvigil. Nuvigilshop provides you this wakefulness promoting agent. In case if you suffer from excessive sleepiness or narcolepsy, shift work sleep disorder then go with this medicines. These are recommended by doctor to have active day.

Elderly66 Wednesday, April 17, 2013

I am 66 years old woman. Lately I am experiencing that in the middle of the night I am howling due to some terrible nightmare, generally I realise in sleep that I am howling, I get awakened, mostly am unable to recall the dream sequence, but a general feeling of dread is there. It is disturbing my family. I am on a drug [ pentoprazole] stomach disorder. Kindly help.

Most Popular on Medindia