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Related Concept Videos

Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
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Understanding Sleep01:11

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Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
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Insufficient Sleep and Sleep Deprivation01:13

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
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Stages of Sleep01:22

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Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
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Management of Insomnia01:19

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The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
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Insomnia01:27

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Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
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Updated: May 3, 2026

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Sleep health: can we define it? Does it matter?

Daniel J Buysse1

  • 1Sleep Medicine Institute and Department of Psychiatry, School of Medicine, University of Pittsburgh, Pittsburgh, PA.

Sleep
|January 29, 2014
PubMed
Summary

Defining sleep health is crucial for overall wellness and population health. This concept moves beyond disease absence to focus on positive attributes like performance and adaptation.

Area of Science:

  • Sleep Medicine
  • Public Health
  • Behavioral Science

Background:

  • Historically, sleep medicine focused on diagnosing and treating sleep disorders.
  • The concept of 'sleep health' remains ill-defined and underutilized.
  • Population health is increasingly viewed through positive metrics like wellness and performance.

Purpose of the Study:

  • To define sleep health beyond the absence of disease.
  • To highlight the importance of sleep health for individuals and populations.
  • To propose a framework for measuring sleep health.

Main Methods:

  • Review of existing literature and concepts in sleep medicine.
  • Analysis of empirical data linking sleep dimensions to health outcomes.
  • Development of a proposed definition and measurement tools for sleep health.
Keywords:
Sleephealth measurementoutcomespublic policy

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Main Results:

  • Sleep health can be conceptualized and measured using both self-report and objective methods.
  • Key dimensions of sleep are empirically linked to health outcomes.
  • A definition and measurement items for sleep health are proposed.

Conclusions:

  • Defining sleep health is essential for advancing sleep medicine and public health.
  • Promoting sleep health aligns with broader healthcare goals like individual empowerment and cost reduction.
  • Establishing sleep health as a concept offers new avenues for research and clinical practice.