Life Span Changes in Sleep
Life Span Changes in Sleep;
-Newborns
-Childhood
-Adolesence
-Adulthood
-Old Age
- Created by: Jodie-Leigh
- Created on: 31-05-14 01:08
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- Life Span Changes in Sleep
- Newborns
- AO1
- Enter REM immediately, NREM and REM established after 3 months
- By 20 weeks, mainly awake between 10am - 8pm
- AO2
- Evolutionary advantage - more time to hunt whilst baby sleeps
- Night waking useful - regular feeding and to warm up if cold
- Active REM - immature brains - neurotransmitter production
- AO1
- Childhood
- AO1
- 1yr: sleep 13-14hrs
- Total sleep decreases. Time spent in each sleep cycle increases
- 5-12yrs: Total night sleep about 9-10hrs
- Total sleep decreases. Time spent in each sleep cycle increases
- 5-12yrs: Total night sleep about 9-10hrs
- 1yr: sleep 13-14hrs
- AO2
- Cultural Bias: sleeping patterns in 11-16yr olds vary in 11 different countries
- Korea slept for 6.5hrs
- Iran slept for 7.7hrs
- View of behaviour often ignores the variation between cultures
- Cultural Bias: sleeping patterns in 11-16yr olds vary in 11 different countries
- AO1
- Adolescence
- AO1
- Puberty - sexual and pituitary growth hormones are released during NREM sleep in pulses.
- Melatonin influences the biological clock - decrease in this signals puberty to start (also makes feel tired).
- Although sleep quality and quantity doesn't change much, other external pressures may lead to a less regular sleep cycle.
- AO2
- Change in sleep pattern's linked to hormonal changes - primary released at night, disturbing sleep patterns.
- Causes 'typical puberty' signs
- Recommend schools to start later to accommodate shorter attention spans
- AO1
- Adulthood
- AO1
- 18-30yrs - start sleeping less and don't experience such deep sleep.
- 55% of 18-29yr olds suffer from day time sleepiness.
- Suggested tthat equal amounts of sleep are required here as in adolescence
- 30-45yrs: Shallowing and shortening of sleep. Duration drops to about 7hrs, and stage 4 virtually disappears. Increased light sleep stages
- Age effects prostrate gland - wake more to urinate
- AO2
- Increased mortality risk associated with too much sleep.
- Survey on over 1 million adults - 6/7hrs sleep reduced risk, 8hrs 15% increase, and 10+hrs over 30% increased risk
- Cause and effect not established
- Increased mortality risk associated with too much sleep.
- AO1
- Old Age
- AO1
- Hormone loss - want to go to sleep earlier due to poor quality sleep
- Andropause
- Menopause
- Total sleep duration unchanged, but REM decreases to 20% and stage 2 increases to 60%
- Sleep disturbence is common
- Hormone loss - want to go to sleep earlier due to poor quality sleep
- AO2
- Reduced sleep partly caused by physiological changes and problems staying asleep, e.g. sleepaponea or medical illnress
- Reduced deep sleep due to less growth hormone production
- cause common symptoms such as low bone density and lack of energy.
- Various techniques such as relaxation techniques and use of melatonin use
- improve life quality
- AO1
- Newborns
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