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Related Concept Videos

Anxiety: Overview01:18

Anxiety: Overview

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Anxiety is a common mental disorder featuring excessive worry, fear, and apprehension, significantly affecting daily life. People with anxiety disorders experience persistent and intense anxiety, interrupting their everyday functioning.
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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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Generalized Anxiety Disorder (GAD) is a chronic condition characterized by excessive and uncontrollable worry that persists for at least six months, significantly interfering with daily functioning. Unlike situational anxiety, which arises in response to specific stressors, GAD often occurs without a clear cause. Individuals may experience disproportionate worry about work, health, or relationships. For instance, a person might continuously fear poor health despite normal medical evaluations or...
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Obsessive-Compulsive Disorder01:28

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Obsessive-compulsive disorder (OCD) is a mental health condition characterized by recurrent obsessions, compulsions, or both, which consume significant time and interfere with daily functioning. Obsessions involve persistent, intrusive, and unwanted thoughts, images, or urges that evoke anxiety. Common examples include irrational fears of contamination or harm. Compulsions are repetitive behaviors or mental acts performed to reduce the anxiety caused by obsessions. For instance, individuals...
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Sleep-Wake Cycles01:24

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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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Panic disorder is an anxiety disorder characterized by recurrent and sudden minutes-long episodes of intense fear, known as panic attacks. These attacks may feel like heart attacks and often happen without warning or a specific cause. They can include symptoms such as rapid heart rate, shortness of breath, chest pain, trembling, sweating, dizziness, and a sense of helplessness. During a panic attack, individuals may feel as though they are experiencing a heart attack or are in a...
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Related Experiment Video

Updated: Jan 4, 2026

A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
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A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice

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Overanxious and underslept.

Eti Ben Simon1, Aubrey Rossi2, Allison G Harvey3

  • 1Center for Human Sleep Science, Department of Psychology, University of California, Berkeley, CA, USA. etibens@berkeley.edu.

Nature Human Behaviour
|November 6, 2019
PubMed
Summary
This summary is machine-generated.

Sleep loss increases anxiety by impairing brain activity in key regions. Non-rapid eye movement sleep (NREM) offers anxiety reduction, even with modest sleep deficits.

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Area of Science:

  • Neuroscience
  • Sleep Science
  • Psychiatry

Background:

  • Sleep disruption is a common symptom of anxiety disorders.
  • Understanding the brain mechanisms linking sleep and anxiety is crucial.

Purpose of the Study:

  • Investigate how sleep loss causes anxiety.
  • Explore if minor sleep reductions increase anxiety.
  • Examine sleep's anxiety-reducing mechanisms.

Main Methods:

  • Investigated brain mechanisms of sleep loss-induced anxiety.
  • Examined the impact of reduced sleep on anxiety levels.
  • Assessed the role of NREM sleep oscillations.

Main Results:

  • Sleep loss impairs medial prefrontal cortex activity and its connectivity with limbic regions, increasing anxiety.
  • Non-rapid eye movement (NREM) slow-wave oscillations reduce anxiety by benefiting these brain networks.
  • Even modest sleep reductions correlate with increased daily anxiety.

Conclusions:

  • Sleep loss exacerbates anxiety via altered brain activity.
  • NREM sleep provides significant anxiolytic effects.
  • Targeting NREM sleep may offer a therapeutic strategy for anxiety reduction.