The difference between a sleep disturbance and a sleep disorder is
A. whether it occurs every night
B. whether the person has been diagnosed
C. whether it causes significant impairment to every day life in normal waking hours
D. whether the sleep disorder is primary or secondary
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Which of the following is NOT TRUE about Circadian Rhythm Phase Disorders?
A. they involve a mismatch the individual’s sleep wake pattern and the pattern that is desired or required
B. the adolescent sleep-wake shift, jet lag, and shift-work disorder are all types of circadian rhythm phase disorders
C. they are characterised by inappropriate physiological and psychological behaviours that occur while sleeping
D. people with these disorders often complain of not being able to sleep when needed, or wake up when needed