12. Sleep Flashcards
(32 cards)
Are ‘‘functioning’’ and ‘‘thriving’’ the same concept?
NON
Darkness increases which hormone
Melatonin
Melatonin increases what
Sleepiness
Internal clock can be disrupted by what?
Work
Travel
Early school starts
Daylight deprivation
Over exposure to artificial light at night
REM
Rapid eye movement
Non REM - Stage N1
Transition to sleep
Eyes moving slowly, muscle activity slows, easily awakened
Lasts about 5 minutes
Duration of sleep Stage N1
About 5 minutes
Non REM stage N2
Light but true sleep
Eye movement stops, heart rate slows, body temperature drops
Lasts from 10-25 min
Duration of sleep stage N2
10 to 25 minutes
Non REM sleep stage N3 and N4
Deep sleep, very slow brain waves
Physically restorative
Which stage is deep sleep and which stage is very deep sleep?
N3 = deep sleep
N4 = very deep sleep
Dream stage of sleep
REM
When does REM sleep starts?
70-90 minutes after falling asleep
Characteristics of REM sleep
Shallow breathing
HR and BP increase
Arms and legs paralyzed
When does most deep sleep occurs?
In the first half of the night
When does REM sleep lengthens the most?
In the early morning hours
Which 3 stages are the most important?
N3-N4 and REM sleep
A normal sleep cycle includes: % for each
50% stage 2
20% in REM
30% in all other stages
Importance of REM sleep
Learning and memory
Brain process and consolidates infor.
Form neural connections (memory function)
Neurotransmitter boost
If sleep is insufficient, the body will prioritize which stage?
Deep sleep over REM
Recommended hours of sleep - newborns younger than 4 months
Sleep patterns vary widely
Recommended hours of sleep - Babies 4 months to 1 yo
12-16 hours per day
Recommended hours of sleep - Children 1 to 2 yo
11 to 14 hours per day
Recommended hours of sleep - Children 3 to 5 yo
10 to 13 hours
