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Published on: September 22, 2020
Sleep and anxiety disorders.
1Sleep Laboratory, FORENAP, Rouffach, France.
Dialogues in Clinical Neuroscience
|October 29, 2011
Summary
Sleep disturbances are common in anxiety disorders, potentially linked to stress response systems. Research shows limited, inconsistent sleep alterations across different anxiety disorders, complicating specific diagnoses.
Area of Science:
- Psychiatry
- Sleep Medicine
- Neuroscience
Background:
- Sleep disturbances, especially insomnia, are highly prevalent in anxiety disorders.
- Symptoms like insomnia and nightmares are criteria for certain anxiety disorders, including generalized anxiety disorder and posttraumatic stress disorder.
- The corticotropin-releasing hormone system and locus ceruleus-autonomic nervous system are implicated in stress arousal and may contribute to pathological anxiety.
Purpose of the Study:
- To review the relationship between sleep and anxiety disorders.
- To discuss the role of stress response systems in anxiety-related sleep disturbances.
- To examine polysomnographic findings in various anxiety disorders and suggest treatment approaches focusing on sleep.
Main Methods:
- Review of recent studies on the relationship between sleep and anxiety.
- Discussion of neurobiological systems involved in stress and arousal.
- Analysis of polysomnographic data from studies on generalized anxiety disorder, panic disorder, obsessive-compulsive disorder, and posttraumatic stress disorder.
Main Results:
- Limited alterations in sleep architecture are documented in anxiety disorders via polysomnography.
- Some evidence suggests sleep maintenance issues in generalized anxiety disorder and sleep initiation/maintenance problems in panic disorder.
- No definitive sleep profile specific to any anxiety disorder was found, with conflicting results across studies.
Conclusions:
- The relationship between sleep disturbances and anxiety disorders is complex and not fully elucidated by current polysomnographic data.
- Discrepancies in findings may stem from variations in illness severity, comorbidity, and duration.
- Targeted sleep interventions may be beneficial for managing anxiety disorders, requiring further research.
Related Concept Videos
01:18Anxiety: Overview
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.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
Individuals with anxiety often experience a range of physical and emotional symptoms, including sweating, trembling, tachycardia, and disturbances in sleep patterns. These symptoms vary in intensity and frequency but are generally disruptive and distressing.
01:27Insomnia
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.
Multiple factors contribute...
Multiple factors contribute...
01:24Sleep-Wake Cycles
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
NREM sleep comprises four progressive stages that seamlessly merge:
NREM Sleep
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01:29Anxiolytic Drugs: Benzodiazepines and Buspirone
Benzodiazepines are a class of anxiolytic drugs known for their rapid efficacy and high therapeutic-to-lethal dose ratio, but with a potential risk of drug dependence. These drugs are lipophilic, allowing for rapid absorption after oral administration, eventually reaching the central nervous system (CNS). Once in the CNS, benzodiazepines bind to the allosteric site of the GABAA receptor. This binding enhances the inhibitory effects of the neurotransmitter GABA. By doing so, they prevent...
01:14CNS Depressants: Barbiturates and Benzodiazepines
CNS depressants include drugs from the category of barbiturates and benzodiazepines. They are valuable medications for managing anxiety disorders and insomnia. Barbiturates, once used to induce and maintain sleep, have been replaced mainly by benzodiazepines due to barbiturate's toxicity, tolerance, and overdose risks. They interact with GABAA receptors, leading to sedation at low doses and potentially coma and death at higher doses. Phenobarbital, a long-acting barbiturate, possesses...
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Anxiolytic drugs are vital in managing anxiety disorders by effectively alleviating symptoms such as excessive fear, tachycardia, and tremors. There are several classes of anxiolytic medications, each with unique mechanisms of action and potential side effects.
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1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.
Primary Types of Anxiolytic Drugs
1. Benzodiazepines:
Benzodiazepines bind to the GABA-A receptor in the brain, enhancing GABA's interaction. This action reduces neurotransmission, effectively blocking anxiety-associated limbic circuitry.