Sleep & Rest Flashcards
Maslow lists sleep as-
A Physiological Requirement
Getting enough quality sleep according to our circadian rhythms can protect-
Mental/ physical health, safety, quality of life
What increases the risk of heart disease, kidney disease, high BP, diabetes, stroke, as well as weakens the immune system?
Chronic Sleep Deficiency
What are the 2 internal sleep mechanisms that help promote sleep?
Circadian Rhythm + Sleep-Wake Homeostasis
Your circadian rhythm directs a wide variety of body functions including -
Wakefulness, Core Temperature, Metabolism, and the Release of Hormones
Controls the timing of sleep, causes a person to feel sleepy at night and creates a tendency to wake up in the morning without an alarm =
Circadian Rhythm
Based roughly on a 24-hour clock + use environmental cues, such as light and temperature to determine the time of day =
Circadian Rhythm
Regulates sleep intensity, causing a person to sleep longer + more deeply after a period of sleep deprivation =
Sleep-Wake Homeostasis
What 3 hormones are a part of sleep-wake homeostasis?
Adenosine, Melatonin, & Cortisol
Increases through the day, peaking when it’s time to sleep. It’s broken down during sleep =
Adenosine
Released whenever it gets dark + signals the body that it is time to sleep =
Melatonin
Released in the morning to signal the body that it is time to awaken =
Cortisol
Name off the factors that influence a person’s sleep/ wakefulness
Medications, medical conditions, stress, sleep environment, foods + fluids consumed, exposure to light
The greatest influence to sleep and wakefulness is-
Exposure to light
Examples from a bright artificial light include light from-
A TV, Screen, Computer, or Smartphone
Bright artificial lights can-
Hurt sleep
Why might night-shift workers have the issue of falling asleep at work?
Their natural Circadian Rhythm + Sleep-Wake Cycle are disrupted
Jet lag disrupts-
Circadian Rhythms
When flying to a different time zone, a mismatch is created between-
A person’s internal clock and the actual time of day
Newborns may sleep more than how many hours a day?
16 hours
Preschool-aged children need to-
Take Naps
Young children tend to sleep more at what time of day?
Early Evening
Compared to young children, older adults tend to go to bed-
Earlier
Compared to young children, older adults tend to wake up-
Earlier
Compared to young children and older adults, teenagers tend to fall asleep-
Later at night
It’s natural for what kind’s of people to prefer later bedtimes at night and sleep later in the morning than adults?
Teenagers
Teenagers fall asleep later at night than younger children and adults because-
Melatonin is released and peaks later in the 24-hour cycle for teens.
The 2 Phases of Sleep =
Rapid Eye Movement (REM) + Non-REM (NREM) sleep.
A full sleep cycle takes how many minutes to complete?
80 - 100
Most people typically cycle through how many sleep cycles per night?
4 - 6
Is it common to wake up briefly between sleep cycles?
Yes
Restoration mostly takes place during-
Slow-Wave Sleep
During slow-wave sleep, what changes occur to the body?
Decreased brain oxygen consumption, HR, Body Temp.
Why is slow-wave sleep called slow-wave sleep?
Along with vitals, brain activity also decreases
What is it called to observe brain activity during sleep?
Sleep Studies
NREM has how many stages?
3
Transition between sleep and wakefulness is what stage of NREM sleep?
1st Stage
Initiation of the sleep phase is what stage of NREM sleep?
2nd Stage
Slow-Wave Sleep stage is also known as-
The deep sleep stage
Slow-wave sleep is what stage of NREM sleep?
The 3rd
What stage of sleep is based on a pattern that appears during measurements of brain activity?
Slow-Wave Sleep
People spend the most amount of sleep time in what stage of sleep during the early part of the night?
Slow-Wave Sleep
During REM sleep, what happens to a person’s vitals?
Increased HR + RR
In what stage of sleep do the eyes twitch as they rapidly move back and forth and the brain is active?
REM Sleep
Brain activity measured during REM sleep is similar to activity during-
Waking Hours
Dreaming occurs during what stage of sleep?
REM Sleep
In what stage of sleep do muscles normally become limp to prevent acting out one’s dreams?
REM Sleep
People typically experience more REM sleep when?
As the night progresses
What kinds of environments can affect a person’s REM sleep?
Hot + Cold Environments
How do hot or cold environments affect a person’s REM sleep?
The body doesn’t regulate temperature well during REM sleep
Lack of sleep affects-
Daytime performance + quality of life
During sleep, the body is working to promote-
Healthy brain function and maintain physical health
Sleep helps promote growth and development in-
Children + Teens
The way a person feels while awake depends on their-
Quality of sleep
A good night’s sleep helps improve-
Learning + improves problem-solving skills
What helps a person to pay attention, make decisions, and be creative?
Sleep
What can sleep deprivation lead to?
Depression, Suicide, Risky Behavior
Hormone that makes you feel hungrier =
Grehlin
Hormone that makes you feel like you can’t eat anymore =
Leptin
Does sleep control leptin and grehlin?
Yes
Is sleep involved in healing + repairing the heart and blood vessels?
Yeah
Can kidney disease, a high BP, diabetes and stroke be caused by sleep deficiency?
Yes
When a person doesn’t get enough sleep, the level of grehlin -
Increases
When a person doesn’t get enough sleep, the level of leptin -
Decreases
Why do you feel hungrier when sleep deprived?
Your grehlin levels are higher than your leptin levels
Adequate sleep helps promote-
Growth + Development