Sleep

Question 1

Purpose of Sleep

Answer 1

Period of rest and recovery from the demands of wakefulness (Restoration and growth takes place)

Question 2

Sleep Depravation

Answer 2

Effects all domains of function
-Sleepiness can impair driving performance
-Irritability
-Lower anger and frustration threshold
-Decrease motivation
-Daytime drowsiness
A well rested person needs 15-20 min. to fall asleep

Question 3

What makes your body want to sleep?

Answer 3

• Circadian Rhythms
• Suprachrasmatic Nuclei
• Adenosine

Question 4

Circadian Rhythms (What makes your body want to sleep?)

Answer 4

24 cycle of physiological and behavioral functioning; The body goes through rhythmic changes that help us move from sleep to wake

Question 5

Suprachrasmatic Nuclei (What makes your body want to sleep?)

Answer 5

Controls the release of melatonin; Controls the body temperature and levels of alertness and activity

Question 6

Adenosine (What makes your body want to sleep?)

Answer 6

Accumulate in the body’s cells during the day when the levels get too high the brain signals that it is time to sleep

Question 7

Stages of Sleep

Answer 7

4 phases; Non-Rapid Eye Movement – 75% of sleep is in this mode

Question 8

Stage 1 of Sleep

Answer 8

Transitional /Light Sleep; Brain activity slows, breathing becomes shallow, general awareness of external environment if woken up denies being asleep

Question 9

Stage 2 of Sleep

Answer 9

Brain activity further slows down, muscle activity decreases, can last from @10-20 minutes

Question 10

Stage 3 of Sleep

Answer 10

Slow wave sleep – combination of theta and delta brain waves

Question 11

Stage 4 of Sleep

Answer 11

Deep sleep- would feel groggy if woken usually spend 20-40 min in deep sleep BP drops, RR decreases

Question 12

Rapid Eye Movement

Answer 12

Usually begins at 70-90 minutes after fallen asleep

• RR and HR rate increases
• Increase brain activity
• Resembles wake state
• Eye movement
• Dreams usually occur at this stage
• Can last 1-10 minutes

Question 13

Sleep Cycle

Answer 13

• During sleep you can cycle back and forth between stages; the cycle can take up to 90 minutes to 110 minutes
• In 1 night a person can go through 4-5 – each time the REM sleep doubles lasting 10-60 minutes
• As adults age less deep sleep and REM sleep is experienced

Question 14

Sleep Disorders

Answer 14

• More common in middle to later life
• Women usually have more slow wave sleep and experience more insomnia
• Males usually experience more REM sleep

Question 15

Sleep Disorders

Answer 15

Dyssomnias, Insomnia

Question 16

Dyssomnias (Sleep Disorders)

Answer 16

Difficulty in falling or staying asleep , excessive sleepiness

Question 17

Insomnia (Sleep Disorders)

Answer 17

Difficulty falling or staying asleep at least a few nights a week

• Takes longer than 30 minutes to fall asleep
• 5 or more awakening a night
• Sleeping less than 6.5 hours
• Experiencing less than 15 min of deep slow wave sleep
• Persist for over one month

Question 18

Sleep Apnea (Sleep Disorders)

Answer 18

Periods of non breathing during sleep 2 major types

Question 19

Central Sleep Apnea (Sleep Disorders)

Answer 19

Rare condition, brain fails to regulate the diaphragm and other breathing mechanisms properly

Question 20

Obstructive Sleep Apnea (Sleep Disorders)

Answer 20

More common, upper airway is obstructed during sleep

Question 21

Narcolepsy (Sleep Disorders)

Answer 21

Sleep attacks; Person unintentionally falls asleep

Question 22

Restless Leg Syndrome (Sleep Disorders)

Answer 22

Disagreeable sensation in the limbs (usually legs)

Question 23

Hypersomnia (Sleep Disorders)

Answer 23

Excessive daytime sleepiness despite & adequate amount of sleep at night person may require 12 hours

Question 24

Circadian Rhythm Sleep Disorder (Sleep Disorders)

Answer 24

Person internal sleep cycle is out of synch with sleep wake demands

Question 25

Sleep walking (Sleep Disorders)

Answer 25

Rise out of deep sleep and act as they are awake

Question 26

Nightmare Disorder (Sleep Disorders)

Answer 26

Experience vivid often frightening dreams during sleep