PY2EA03

123456
Across
  1. 2. a strong memory of a past event that comes suddenly into a person's mind (e.g., in PTSD)
  2. 5. continuous positive airway pressure therapy for obstructive sleep apnoea
  3. 6. sleep __; behavioural and environmental practices that support healthy, restorative sleep
Down
  1. 1. __ disorder; an anxiety disorder characterised by reoccurring unexpected panic attacks
  2. 3. a graph that represents the stages of sleep as a function of time
  3. 4. REM __; the amount of time elapsed between the onset of sleep to the first REM sleep stage