u4 aos1 dp9

Question 1

circadian phase disorders

Answer 1

when sleep-wake cycle and sleep-wake schedule do not align

Question 2

types of circadian phase disorders

Answer 2

• sleep wake cycle shift in adolescence
• sleep wake cycle disturbance due to shift work
• sleep wake cycle disturbance due to jet lag

Question 3

sleep cycle shift in adolescence

Answer 3

• need 9 hours, don’t get it
• accumulate sleep debt (difference bw/ sleep need and obtained)
• physiological - melatonin secreted hour or two later
• psychological + social - mental health, overthinking, work, school, desires, screens

Question 4

sleep wake cycle disturbance due to shift work

Answer 4

• work outside of 9-5
• biologically programmed, shift work disturbs this
• lead to poor judgement
• sleep problems

Question 5

sleep wake cycle disturbances due to jet lag

Answer 5

• mismatch between internal circadian biological clock and external environment
• reduces over time (2-8 days)
• troubles falling asleep, waking up, impaired concentration and cognitive abilities, low alertness
• west is best