• Obstructive Sleep Apnea
  • One of the most common sleep disorders.
  • Characterized by repetitive episodes of nocturnal breathing cessation due to upper airway collapse.
  • Affects all age groups, but frequency increases with age and obesity.
  • Common symptoms are snoring, excessive daytime sleepiness, gasping during sleep and mouth breathing.
• Periodic Limb Movement Syndrome
  • Characterized by legs or arms often involuntarily jerking or moving during sleep.
  • The patient is often very unaware that these movements are happening.
  • This disorder is common for people who already have restless leg syndrome but should not be confused with it. RLS occurs when the patient is both asleep and awake and is a voluntary response to an uncomfortable feeling in the patients’ legs.
  • Common symptoms are excessive daytime sleepiness, daytime fatigue, trouble falling asleep at night and difficulty staying asleep at night.
• Insomnia
  • Characterized by difficulty in falling asleep and staying asleep.
  • Can be caused by stress, excitement about an upcoming event or worry.
  • There are many medical conditions that can lead to insomnia. Some medical conditions themselves can cause insomnia (e.g., nasal/sinus allergies, gastrointestinal or endocrine problems, arthritis, asthma, neurological conditions, chronic pain).
  • Insomnia can also be a symptom of an underlying sleep disorder, such as Obstructive Sleep Apnea.
  • Common symptoms are difficulty falling asleep, waking up often during the night and having trouble going back to sleep, waking up too early in the morning and feeling tired upon waking up.
• Narcolepsy
  • Can be hereditary.
  • Common symptoms are excessive sleepiness, hallucinations just before and after sleep, muscle weakness or sometimes paralysis with increase in emotional events, and the inability to move for several minutes after waking up.
• REM Behavior Disorder
  • Can be hereditary.
  • Common in adolescents and teenagers.

  • Uncommon in adults; if present, it could indicate a more serious problem.
  • Common symptoms are sleepwalking and even acting out dreams.
• Shift Work Disorder
  • Common in many people that work at night or change work shifts frequently.
  • Triggered by the body not being able to have a regular sleep cycle.
  • Common symptoms are insomnia and tiredness.

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