Generalized Anxiety Disorder: Criteria, Causes, And Mental Health Treatment Options

Medically reviewed by Majesty Purvis, LCMHC
Updated July 1st, 2025 by BetterHelp Editorial Team

Worry is a natural emotional reaction that arises when you are uncertain about the future. However, for some, this uncertainty may persist and compound. Excessive worry and a vague, unsettled feeling may be symptoms of an anxiety disorder known as generalized anxiety disorder (GAD).

GAD is one of the most common mental health conditions. Read on to learn more about its physical and psychological symptoms, the criteria used to diagnose it, and recommended treatments for excessive anxiety and worry.

Getty/AnnaStills
Are you experiencing symptoms of generalized anxiety disorder?

What is generalized anxiety disorder (GAD)?

GAD is a mental disorder that is characterized by worry, fear, and persistent overwhelm. A major component of generalized anxiety disorder is excessive worry about ordinary situations in day-to-day life, rather than being focused on a specific topic or problem. While anxiety and worry are typical human emotions, people with GAD may experience them to the point of distress or functional impairment in multiple areas of their lives, such as work, health, or finances. GAD may often include physical symptoms, but diagnosis does not require the presence of panic attacks.

According to the National Institute of Mental Health, “Generalized anxiety disorder usually involves persistent anxiety or dread, which can interfere with daily life. It is not the same as occasionally worrying about things or experiencing anxiety due to stressful life events.” 

DSM-5 definition of generalized anxiety

When assessing someone for a GAD diagnosis, medical professionals look for the following criteria for identifying anxiety disorders found in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), published by the American Psychiatric Association Publishing:

  • You experience excessive worry or anxiety about multiple events or activities, such as school, work, or performance, which occurs most days and persists for at least six months
  • You have difficulty controlling your worry
  • You experience significant distress or impairment at work, socially, or in other vital areas due to anxiety, worry, and physical symptoms
  • Your symptoms are not attributable to the effects of a substance or other medical condition

You experience three or more of the following symptoms, with at least some symptoms present for more days than not in the past six months:

  1. Restlessness, feeling on edge or feeling keyed up
  2. Easily fatigued
  3. Difficulty concentrating or the mind going blank
  4. Irritability
  5. Muscle tension
  6. Difficulty falling or staying asleep, or other sleep changes
  7. Another mental health condition does not better explain your symptoms

Other generalized anxiety disorder symptoms:

  • Physical complaints such as headaches, muscle tension, stomachaches, or unexplained chest pain
  • Excessive and persistent worry
  • Perceiving a threat that is not present
  • Difficulty relaxing
  • Trouble handling uncertainty
  • Easily startled or jumpy
iStock/fizkes

Understanding the physical symptoms of GAD

Anxiety is more than being nervous. Among other things, it is your body’s response to perceived threats, triggering the “fight or flight” response. GAD involves constant tension, which can lead to physical symptoms like nausea, sweating, trembling, headaches, racing heart, hyperventilating, lightheadedness, fatigue, muscle tension, gastrointestinal issues, restlessness, pent-up energy, and other physical symptoms. 

How is GAD diagnosed using generalized anxiety disorder criteria?

A primary care doctor or mental health professional can diagnose GAD. The process may start with a physical exam to identify and rule out other potential causes of anxiety symptoms, such as certain medications or an underlying medical condition. They may ask detailed questions about symptoms and medical history. Many clinicians use a series of psychological questionnaires to help determine a diagnosis, along with the generalized anxiety disorder criteria presented above from the DSM-5.

How common are anxiety disorders?

According to research published by the Anxiety and Depression Association of America (ADAA), the country’s most common mental health conditions are anxiety disorders. Research states that the lifetime prevalence of GAD in the U.S. reaches 19.1% of the population. The ADAA further says that anxiety disorders are “highly treatable,” though only 36.9% of people with the condition reach out to professionals in an attempt to treat anxiety. 

Comorbidity of GAD

According to a recent study, generalized anxiety disorder is frequently comorbid — present in the same person at the same time — with various other mental health conditions. The disorder is commonly seen alongside mood disorders (e.g., major depression, bipolar disorder), other anxiety disorders (e.g., social anxiety disorder, panic disorder, post-traumatic stress disorder, phobia-related disorder), chronic pain conditions, eating disorders (e.g., anorexia nervosa), personality disorders, and sleep disorders. Individuals with GAD are at a higher risk of developing substance use disorder.

If you are struggling with substance use, contact the Substance Abuse and Mental Health Services Administration (SAMHSA) National Helpline at (800) 662-4357 to receive support and resources. Support is available 24/7.

If you are experiencing trauma, support is available. Please see our Get Help Now page for more resources.

Recognizing GAD in children

Generalized anxiety disorder does not always present the same in children as in adults. According to child development experts at Boston Children’s Hospital, kids with GAD tend to show excessive and uncontrollable worry compared to non-anxious peers. In addition to typical anxiety symptoms, children with generalized anxiety disorder often exhibit fear over future events, such as what will happen to them if their caregivers get sick or die. They may also consistently expect the worst, fixate on certain events, show extreme concern over their academic or social performance, and display restless or excessive energy.

What causes generalized anxiety disorder?

As with many mental health conditions, the causes of GAD are believed to be a complex interaction of several genetic and environmental factors. Variations in brain chemistry, developmental experiences, personality, and the body’s response to threats can all factor into whether a person develops a generalized anxiety disorder. 

Treating GAD

Many mental health professionals develop a plan to treat generalized anxiety disorder based on how significantly the disorder affects your daily functioning and interferes with your life. GAD treatment typically involves psychotherapy or medication, though a comprehensive treatment plan may involve both. From these treatments, many people managing GAD notice a reduction in symptoms and improved quality of life.

Medication

Clinicians use a variety of medication categories to help treat GAD, including selective serotonin reuptake inhibitors (SSRIs) and serotonin and norepinephrine reuptake inhibitors (SNRIs). The most common GAD medication categories include antidepressants, anti-anxiety medications, and benzodiazepines. If you are interested in how medication may affect your GAD symptoms and daily functioning, speak to your doctor or mental health provider about the possible risks, benefits, and potential side effects.

Anxiety medication side effects differ based on the type and individual reaction. Common side effects include drowsiness, dizziness, blurred vision, dry mouth, nausea, constipation, and losing or gaining weight. Some may experience severe reactions, such as allergies or breathing difficulties. Consult your healthcare provider if you have any concerns regarding medication side effects.

Psychotherapy

Talk therapy is a primary treatment for generalized anxiety disorder. Many patients have reported reduced symptoms and an improved ability to manage their anxiety while working with a licensed therapist. Cognitive behavioral therapy (also known as cognitive behavior therapy or CBT) is one of the most frequently used treatments for GAD, as it focuses on identifying and replacing harmful or maladaptive thought patterns and behaviors. In addition to the effectiveness of cognitive behavioral therapy, patients have also found success with acceptance and commitment therapy (ACT), which can help reduce anxiety-related discomfort through mindfulness and goal setting. 

Support groups

For many people, group therapy can be helpful. In group therapy settings, you can meet other people who are likely experiencing similar issues and will understand much of what you’re going through. It can be difficult to explain mental health symptoms to people who do not know how the condition can affect a person’s thoughts and behaviors. 

Lifestyle changes that can help

  • Practice a mindful lifestyle focused on positive thinking. Work to shift your perspective about situations that cause anxiety
  • Develop positive affirmations to help reassure yourself when you’re feeling anxious
  • Practice deep breathing to recenter yourself and help with calm and focus
  • Keep a journal. Writing about your emotions helps you process them and gives you a written record to track your progress, triggers, and effective coping methods
  • Exercise and consume nutritious foods
  • Try taking on a calming hobby
  • Enjoy a walk in nature to ground yourself

Getty
Are you experiencing symptoms of generalized anxiety disorder?

Reach out for professional mental health support and guidance

Living with generalized anxiety disorder can be challenging, but you are not alone. Reach out for a licensed therapist for professional support and guidance and gain additional resources as you build a repertoire of practical coping skills to manage your anxiety symptoms and stress reactions. 

How therapy can help you manage GAD symptoms

A licensed therapist can help you manage the symptoms of generalized anxiety disorder. Many people have successfully received treatment for GAD and other mental health conditions through online therapy providers such as BetterHelp. Flexible appointment formats make it easier to fit treatment into your busy schedule, and online therapy is often less expensive, with shorter wait times. 

A recent study suggests that online therapy is a practical, affordable treatment option for anxiety disorders that can be as effective as in-person sessions. Professionals in the industry have stated that the efficacy of therapy increases with the number of sessions attended. According to patients, the convenience of receiving therapy from home meant they could attend more reliably. Many also said the added physical distance made opening up to their therapists easier.

Takeaway

Generalized anxiety disorder can significantly impact your life and mental stability. While symptoms can be challenging to manage alone, working with a licensed therapist can substantially reduce symptoms and their effects. The information presented in this article may offer some insight into GAD and how therapy can help reduce the interference of symptoms in your life.
Regulate anxiety in a compassionate environment
The information on this page is not intended to be a substitution for diagnosis, treatment, or informed professional advice. You should not take any action or avoid taking any action without consulting with a qualified mental health professional. For more information, please read our terms of use.
Get the support you need from one of our therapistsGet started