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Generalized Anxiety Disorder: DSM-5 Criteria and Diagnosis

Gildas GarrecCBT Psychopractitioner
8 min read

Generalized Anxiety Disorder: Understanding the DSM-5 Criteria and Finding Solutions

Marie, 34 years old, hasn't been able to sleep for months. As soon as she closes her eyes, worries flood in: "What if my son has an accident at school?", "What if my husband loses his job?", "What if this back pain is something serious?". She experiences these worries from morning to evening, accompanied by persistent muscle tension and chronic fatigue that exhausts her.

Does this situation seem familiar to you? Marie potentially shows signs of Generalized Anxiety Disorder (GAD), a condition affecting approximately 6% of the general population according to recent epidemiological studies. Contrary to common misconceptions, this is not simply being "someone who worries," but a genuine psychological disorder with precise diagnostic criteria.

The Diagnostic and Statistical Manual of Mental Disorders (DSM-5), the international reference in psychiatry and clinical psychology, establishes rigorous criteria for identifying GAD. Understanding these criteria is essential for distinguishing normal anxiety from pathological worries and directing individuals toward appropriate treatment.

What is Generalized Anxiety Disorder?

Clinical définition of GAD

Generalized Anxiety Disorder is characterized by excessive and persistent anxiety concerning multiple domains of daily life. This anxiety is not focused on a specific object or situation, unlike phobias or panic disorder, but manifests in a diffuse and pervasive manner.

Research conducted by Dr. David Barlow, a pioneer in the study of anxiety disorders, shows that people with GAD present a chronic tendency toward pathological worry, accompanied by specific physical and cognitive symptoms.

Distinction from normal anxiety

It is crucial to differentiate GAD from normal adaptive anxiety. We all experience worries facing life's challenges: exams, job interviews, the health of loved ones. This anxiety becomes pathological when:

  • It is disproportionate to the reality of threats
  • It persists even in the absence of identifiable triggers
  • It significantly interferes with daily functioning
  • It is accompanied by disabling physical symptoms

DSM-5 Diagnostic Criteria for GAD

Criterion A: Excessive anxiety and worry

The first criterion requires the presence of anxiety and excessive worry occurring most days for at least 6 months. This 6-month period is fundamental as it allows distinguishing GAD from temporary anxious reactions related to isolated stressful events.

The worries must concern a number of activities or events, such as:

  • Work or school responsibilities
  • Personal health or that of loved ones
  • Finances and material security
  • Interpersonal relationships
  • Minor daily life events

Criterion B: Difficulty controlling worry

The person experiences difficulty controlling these worries. This is a central aspect of GAD: unlike normal worries that we can generally "set aside," GAD worries are intrusive and difficult to manage.

Patients often describe this experience as a "mental carousel" or "thoughts going in circles," illustrating this characteristic loss of control.

Criterion C: Somatic symptoms

The anxiety and worries are accompanied by at least three of the following six symptoms in adults (only one symptom is required in children):

  • Restlessness or feeling keyed up or on edge
  • Fatigability: chronic exhaustion even without significant physical effort
  • Difficulty concentrating or memory lapses
  • Irritability: disproportionate reactions to minor frustrations
  • Muscle tension: muscle tightness, pain, stiffness
  • Sleep disturbance: difficulty falling asleep, nighttime awakenings, non-restorative sleep

Exclusion criteria and functional impairment

Criteria D, E, and F of the DSM-5 specify that:

  • The anxiety causes clinically significant distress or functional impairment
  • The disturbance is not attributable to the effects of a substance or medical condition
  • It is not better explained by another mental disorder

Assessment Tools and Self-Assessment

The GAD-7 Scale

The GAD-7 (Generalized Anxiety Disorder 7-item scale), developed by Spitzer and colleagues, is one of the reference tools for assessing GAD severity. This scale, widely used in clinical practice, evaluates the frequency of anxiety symptoms over the past two weeks.

Questions address aspects such as:

  • Nervousness and anxiety

  • Inability to control worries

  • Excessive worries

  • Restlessness and impatience


A score above 10 suggests the presence of moderate to sévère GAD and warrants an in-depth clinical evaluation.

The Hamilton Anxiety Rating Scale (HAM-A)

Developed by Max Hamilton, this scale remains a reference for clinical anxiety assessment. It explores 14 dimensions including psychological symptoms (worries, tension, fears) and somatic symptoms (cardiovascular, respiratory, gastrointestinal, and muscular symptoms).

This multidimensional approach allows comprehensive evaluation of the disorder's impact on different aspects of functioning.

The importance of self-assessment

Regular self-assessment offers several advantages:

  • Awareness: identifying your anxiety patterns
  • Tracking progress: measuring therapeutic improvements
  • Communication with professionals: facilitating therapeutic dialogue
  • Relapse prevention: early detection of worsening
Key point to remember: Self-assessment never replaces professional diagnosis, but it constitutes a valuable tool for self-knowledge and therapeutic monitoring. It allows you to objectify sometimes diffuse feelings and engage in appropriate care.

Impact on Daily Life and Relationships

Professional consequences

GAD significantly affects work performance. Difficulty concentrating, fatigability, and irritability can lead to:

  • Decreased productivity
  • Relational difficulties with colleagues
  • Increased absenteeism
  • Avoidance of responsibilities or décision-making
Statistics show that anxiety disorders represent the leading cause of work leave for psychological disorders, with considerable economic cost.

Impact on interpersonal relationships

GAD can significantly affect relationship quality, particularly within couples. Constant worries, the need for repeated reassurance, and irritability can create tension. In this context, it may be helpful to analyze your couple conversations to identify communication patterns that could be influenced by anxiety.

GAD symptoms can also manifest through:

  • Excessive need for control

  • Repeated checking behaviors

  • Constant solicitation of loved ones for reassurance

  • Difficulty enjoying moments of relaxation and pleasure


Consequences for physical health

Chronic anxiety affects not only psychological well-being. Research shows established links between GAD and:

  • Cardiovascular disorders (hypertension, arrhythmias)
  • Gastrointestinal problems (irritable bowel syndrome)
  • Immune system disorders
  • Chronic pain and muscle tension

Evidence-Based Therapeutic Approaches

Cognitive Behavioral Therapy (CBT)

CBT represents the first-line psychological treatment for GAD according to international recommendations. This approach, developed by Aaron Beck and refined by numerous researchers, focuses on:

Cognitive techniques:
  • Identification of anxiety-provoking automatic thoughts
  • Challenging dysfunctional beliefs
  • Development of more realistic alternative thoughts
  • Management of catastrophic scenarios
Behavioral techniques:
  • Gradual exposure to avoided situations
  • Relaxation and breathing techniques
  • Planning of pleasurable activities
  • Improvement of sleep hygiene

Anxiety management techniques

Several stratégies can be integrated into daily life:

  • Mindfulness: developed by Jon Kabat-Zinn, this approach helps refocus on the present moment
  • Progressive muscle relaxation by Jacobson: systematic technique for muscle relaxation
  • Breathing techniques: diaphragmatic breathing to regulate physiological activation
  • Regular physical activity: studies show a natural anxiolytic effect of exercise

The importance of professional follow-up

Support from a professional trained in anxiety disorders is often necessary. Psychology and Serenity Office offers an integrative approach combining the latest advances in CBT and stress management techniques.

Prevention and Daily Management

Protective factors

Certain elements can help prevent GAD aggravation:

  • Maintaining a social network: quality relationships constitute a major protective factor
  • Regularity of life rhythms: sleep schedules, meals, activities
  • Limiting stimulants: coffee, alcohol, screens before bedtime
  • Regular practice of relaxing activities: meditation, yoga, reading

Warning signs to monitor

It is important to consult when you observe:

  • Notable increase in worries
  • Appearance of new physical symptoms
  • Growing difficulties in daily activities
  • Progressive social isolation
  • Use of substances to manage anxiety

Coping stratégies

Develop an "emergency kit" for moments of high anxiety:

  • Breathing techniques learned and mastered
  • Contacts of supportive people
  • Immediately available calming activities
  • Personalized reassuring phrases or mantras

Conclusion: Toward Better Self-Understanding

Generalized Anxiety Disorder is neither a character weakness nor an inevitability. The DSM-5 criteria offer a rigorous framework for understanding and identifying this disorder, the first step toward lasting well-being. Recognition of symptoms and their impact is a courageous act that opens the door to effective therapeutic solutions.

Current research demonstrates the effectiveness of therapeutic approaches, particularly CBT, with encouraging success rates. The important thing is not to remain isolated facing these difficulties and to allow yourself to ask for help.

Your well-being deserves attention. If you recognize yourself in this description, don't hesitate to conduct a structured self-assessment or consult a qualified professional. Taking care of your mental health is not a luxury, it is a necessity that benefits all aspects of your life: relationships, work, physical health, and personal fulfillment.

The first step toward change begins with self-knowledge. What will yours be?


Watch: Go Further

To deepen the concepts discussed in this article, we recommend this video:

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