29 Questions
What is sleep health characterized by?
Subjective satisfaction with sleep and sustained alertness during waking hours
How is the state of the literature on sleep mostly focused?
On the avoidance of problematic sleep
What does sleep deficiency refer to?
A deficit in the quantity or quality of sleep obtained for optimal health
Which era's perspectives on health does the current orientation of sleep research resemble?
Pre-1940's era
What aspect of sleep does most research on sleep as it relates to health focus on?
Negative consequences of poor or restricted sleep
What is the relationship between physical activity and sleep as per the text?
The relationship between physical activity and sleep is an expected outcome
What is the gold–standard approach for assessing sleep stages?
Polysomnography (PSG)
Which organization sets criteria for sleep stages assessment?
American Academy of Sleep Medicine
What is a limitation of the gold–standard approach for assessing sleep stages?
Requires specially equipped sleep laboratories
What do devices like Fitbit and Apple watches rely on to assess sleep stages?
Heart rate and accelerometry measures
Which stage of sleep is characterized by rapid eye movements (REM)?
REM
What does EEG-based technology primarily assess in relation to sleep stages?
EEG activity
What is the primary purpose of the various metabolic and inflammatory markers mentioned in the text?
To activate the sleep-promoting pathway and induce sleep more quickly
What is the main effect of poor sleep on physical performance?
It contributes to a greater awareness of physical exertion and cognitive impairments
What is the relationship between poor sleep and the risk of exercise-related injury, according to the text?
Poor sleep increases the relative risk of incurring an exercise-related injury
What is the primary reason why poor sleep may impair physical performance?
It contributes to a greater awareness of physical exertion and cognitive impairments
What is the primary function of the NREM Sleep stage 3 (N3) mentioned in the text?
To repair and regenerate the body
What is the main conclusion drawn in the text about the relationship between poor sleep and physical performance?
Poor sleep has no direct impact on physical performance
During which time frame does the peak of the wake-promoting signal occur?
10pm - 1am
What is the role of the ventrolateral preoptic nucleus (VLPO) in the sleep-promoting signal?
Inhibits pathways in the ascending arousal system
Which neural circuits are commonly described as a flip-flop switch in the circadian system?
Dorsomedial Hypothalamic Nucleus and Ventrolateral Preoptic Nucleus
What happens to the circadian sleep-promoting signal during the course of sleep?
Becomes progressively stronger
Which nucleus becomes active to promote sleep when the signal from DMH diminishes?
Ventrolateral Preoptic Nucleus
Which statement best describes the benefit of cycling through different sleep stages?
It allows for greater environmental awareness and rapid transitions to wakefulness.
Why does the time spent in NREM Sleep stage 2 (N2; light) increase as sleep duration progresses?
To allow for greater environmental awareness and responsiveness to external stimuli.
What is the primary function of the dorsomedial hypothalamic nucleus (DMH) mentioned in the text?
It integrates signals that help keep the individual awake when environmental risks are present.
Why is spending nearly half of the total sleep duration in NREM Sleep stage 2 (N2; light) biologically advantageous?
It provides a general degree of environmental awareness to avoid predation and increase survival.
Which sleep stage is characterized by exceptionally low muscle tone and a prolonged transition to fully conscious states?
Both NREM Sleep stage 3 (N3; slow-wave) and REM sleep
Which statement best describes the relationship between sleep stages and environmental risks?
The individual is more likely to be aware of environmental risks during NREM Sleep stage 2 (N2; light) as sleep duration increases.
Explore the topic of sleep in relation to health and its underlying biological drive. Delve into the architecture of sleep and its hypothesized purpose, as well as the expected outcomes of the relationship between physical activity and sleep.
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