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Related Concept Videos

Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

188
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.
Sleep deprivation is a more severe form of sleep loss...
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Depression: Overview01:18

Depression: Overview

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Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
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Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

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Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
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Substance Use Disorders Affecting Sleep01:24

Substance Use Disorders Affecting Sleep

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Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
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Understanding Sleep01:11

Understanding Sleep

441
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.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
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Depressive Disorders: MDD and Dysthymia01:27

Depressive Disorders: MDD and Dysthymia

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Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
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Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
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Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression

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Bidirectional relationship between sleep and depression.

Shinnosuke Yasugaki1, Hibiki Okamura2, Ami Kaneko3

  • 1International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki 305-8575, Japan; Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan; Japan Society for the Promotion of Science (JSPS), Tokyo 102-0083, Japan.

Neuroscience Research
|April 28, 2023
PubMed
Summary
This summary is machine-generated.

Depression and sleep abnormalities are closely linked, with potential bidirectional effects. While sleep issues often accompany depression, acute sleep deprivation may paradoxically improve symptoms, complicating treatment strategies.

Keywords:
AntidepressantsDepressionNREM sleepREM sleepStress

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Sleep Medicine

Background:

  • Depression is frequently associated with sleep disturbances, including shortened rapid eye movement (REM) sleep latency and reduced non-REM sleep delta power.
  • Sleep deprivation can exacerbate stress, negatively impacting mental health and contributing to psychiatric disorders.
  • The relationship between depression and sleep is complex and likely bidirectional, with each influencing the other.

Purpose of the Study:

  • To provide a comprehensive overview of the current understanding of the relationship between depression and sleep.
  • To explore the bidirectional nature of depression and sleep disturbances.
  • To discuss the implications of sleep abnormalities in depression and potential therapeutic insights.

Main Methods:

  • Literature review of current knowledge on depression and sleep.
  • Analysis of findings from human studies and recent animal research.
  • Examination of the effects of sleep on depressive symptoms and vice versa.

Main Results:

  • Patients with depression commonly exhibit specific sleep abnormalities.
  • Acute sleep deprivation can paradoxically alleviate depressive symptoms, indicating a complex interaction.
  • Animal studies increasingly support a bidirectional link between depression and sleep, aiding in identifying relevant neural circuits.

Conclusions:

  • The relationship between depression and sleep is intricate and bidirectional.
  • Understanding sleep's role in depression is crucial for developing effective treatments.
  • Animal models are valuable tools for elucidating the neurobiological underpinnings of stress, sleep, and depression.