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Here is a quick mnemonic “SLEEP DISORDer to remember about Physiology Of Sleep And Wakefulness

This can be valuable for patients as well as medical doctors, nurses & students doing their clinical rounds. You can also find it very useful for med exams like USMLE, MBBS, NEET PG, FMGE, NExT, MCAT & NCLEX exams

Physiology Of Sleep And Wakefulness : How To Remember Easily ?

  • S – Some individuals require more or less sleep than the average 7-9 hours.
  • L – Life span affects sleep patterns, with infants and young children sleeping more than older people.
  • E – Electroencephalogram (EEG) measures brain activity during sleep.
  • E – Electrooculogram (EOG) tracks eye movements during sleep.
  • P – Polysomnography is the continuous recording of sleep-related parameters.
  • D – Distinct stages of sleep include NREM (non-rapid eye movement) and REM (rapid eye movement).
  • I – In NREM sleep, there are three stages: N1, N2, and N3.
  • S – Slowing of the cortical EEG occurs in NREM stages.
  • O – Onset of REM sleep is characterized by low-amplitude, mixed-frequency EEG.
  • R – REM sleep is accompanied by rapid eye movements (REMs) in flurries or bursts.
  • D – During REM sleep, most skeletal muscles experience paralysis.
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Mnemonic : SLEEP DISORDer

Dr. Arin Nandi

Passionate About Medical Science & Helping Future Doctors Achieve Top Ranks In Medical Exams. He is professionally a dentist as well as a public health expert from JIPMER (1), (2)working in health department