why do we sleep Flashcards
three theories on why we sleep
- restorative
- evolutionary
- information consolidation
restorative function
- we sleep in order to seek restoration, healing the body and mind
- NREM sleep is important for restoring physiological functions
-REM sleep is essential for restoring mental functions
evolutionary
- sleep evolved as a means of conserving energy
- species have adapted to sleep during periods of time when wakefulness would be the most hazardous
information consolidation theory
- suggests that people sleep in order to process information that has been acquired during the day
- sleep allows the brain to prepare for the day to come
- sleep helps cement the things we have learnt during the day into long-term memory
- lack of sleep has serious impacts on the ability to recall and remember information
benefits of good nights sleep
- better cognitive skills
- improved memory
- better levels of attention
- improved mood
- improved immune system
how do we get good nights sleep
- sleep hygiene: healthy habits, behaviours and environmental factors that can be adjusted to help you have good nights sleep
- habits; using your bed for sleep only, no caffeine close to bed, limit light exposure before bed, having consistent sleep and wake times
sleep deprivation
short term (partial) effects of sleep deprivation (physiological, BODY)
prolonged (total) effects of sleep deprivation (physiological, BODY)
short term (partial) effects of sleep deprivation (psychology, MIND)
prolonged (total) effects of sleep deprivation (psychology, MIND)
sleep loss and the brain
BAC and sleep deprivation
Randy Gardener
three theories on why we need sleep
- restorative
- evolutionary
- information consolidation
restorative function
- we sleep in order to seek restoration,
healing the body and mind. - NREM sleep is important for restoring
physiological functions, - REM sleep is essential in restoring
mental functions.
evolutionary purpose
- sleep evolved as a mean of conserving energy
- have adapted to sleep during periods of time when wakefulness would be most hazardous
information consolidation theory
- sleep suggests that people sleep in order to process information that has been acquired during the day
- sleep allows the brain to prepare for the day to come
- sleep helps cement the things we have learned during the day into long-term memory
- lack of sleep has a serious impact on the ability to recall & remember information
benefits of good night sleep
- better cognitive skills
- improved memory
- better levels of attention
- improved mood
- improved immune system
how to get good night sleep
- sleep hygiene; healthy habits, behaviours and environmental factors that can be adjusted to help you have a good nights sleep
- habits like; using your bed only for sleep, no caffeine near bed time, limiting light exposure before bed, having consistent sleep & wake time
sleep deprivation
- is the general term used to describe a state caused by inadequate quantity or quality of sleep
physiological short term (partial) sleep deprivation causes
- hand tremors, slurred speech, sleepiness/fatigue, droopy eyes, difficulty focussing eyes
physiological prolonged (total) sleep deprivation causes
- body temp to decrease, respiration to slow, impairment to immune system and reduction in production of some hormones
psychological short term (partial) sleep deprivation causes
- lack of concentration, short attention span, feel irritable and moody, anxiety, lack of motivation, problems with memory
