Life changes and sleep

Question 1

What are the 6 facts of infancy sleep?

Answer 1

Sleep 16 hours a day (uncontinuously)
Wake up every hour
Quiet sleep (SWS) and active (REM)
50% is active sleep
Takes 20 mins to go to deep sleep
By 1 year sleep is at night and theres a reduction in REM

Question 2

What are the 4 key facts of childhood sleep?

Answer 2

By 5 EEG patterns look similar to adults
12 hours sleep a day
30% REM sleep
Likely to experience parasomnias

Question 3

What are the 3 facts of adolescent sleep?

Answer 3

9-10 hours
Phase delay (awake at night)
REM in males sometimes accompanied by orgasm and ejaculation

Question 4

What are the 3 facts for adulthood sleep?

Answer 4

8 hours
25% REM
parasomnias rare but other disorders common e.g. insomnia

Question 5

What are the 4 facts for old age sleep?

Answer 5

Waking up 6 times a night
REM - 20%
SWS - 5% or none
Phase advance

Question 6

What’s the evolutionary approach for how babies sleep?

Answer 6

Babies have an adaptive mechanism to make parents lives easier and ensure survival
They need REM sleep to develop. Premature babies have 90% REM sleep

Question 7

How can hormonal changes explain adolescent sleep?

Answer 7

Hormones are released at night therefore sleep is disturbed

Crowley et al (2007) - phase delay is due to hormones

Question 8

What’s the real-world application for adolescent sleep?

Answer 8

Wolfson et al (2005) said schools should start their day later for better concentration

Question 9

What’s the effect of too munch sleep?

Answer 9

Kripke et al (2002) surveyed over 1 million adults and found 
6-7 hours - reduced
8hrs - 15% increase mortality
10hrs - 30% increase 
Correlational

Question 10

What’s the evaluation of old age sleep beige correlational?

Answer 10

Van Cauter et al (2000) said reduction of SWS may lead to reduced production of growth hormones and therefore the symptoms associated with old age e.g. lack of energy.