What Is Anxiety
Last updated: March 31, 2026
Key Facts
- Most common mental illness: 19.1% of US adults annually
- GAD, social anxiety, and panic disorder are the three main types
- Physical symptoms: racing heart, sweating, muscle tension, insomnia
- CBT is most effective treatment with 50-80% improvement rate
- Only 36.9% of affected people receive treatment
Overview
Everyone experiences anxiety — it's the fight-or-flight alarm. It becomes a disorder when firing constantly, disproportionately, and disrupting normal function.
Types
- GAD: Chronic worry about everyday things for 6+ months
- Social Anxiety: Intense fear of social situations and judgment
- Panic Disorder: Recurring unexpected panic attacks
- Specific Phobias: Irrational fear of specific things
Symptoms
Psychological: Worry, restlessness, difficulty concentrating, irritability.
Physical: Rapid heartbeat, sweating, trembling, muscle tension, insomnia.
Treatment
CBT is the gold standard. Medication (SSRIs, SNRIs) manages symptoms. Lifestyle: Exercise, sleep, limiting caffeine, mindfulness.
Related Questions
What is a panic attack?
Sudden intense fear with physical symptoms: racing heart, chest pain, shortness of breath, dizziness. Peaks within minutes, subsides in 20-30 minutes.
What is the difference between anxiety and stress?
Stress is a response to a specific threat or demand, while anxiety is worry about future events without an immediate trigger. Stress typically decreases once the stressor is removed, but anxiety may persist even when no danger is present.
Can anxiety go away on its own?
Mild anxiety often resolves naturally, but anxiety disorders typically require professional treatment to improve significantly. With appropriate therapy and lifestyle changes, most people with anxiety disorders can manage symptoms effectively.
How is anxiety diagnosed?
Mental health professionals use clinical interviews, questionnaires like the GAD-7, and physical exams to rule out medical causes. Diagnosis is based on the duration, severity, and impact of symptoms on daily functioning.
Sources
- Wikipedia — Anxiety Disorder CC-BY-SA-4.0
- NIMH — Anxiety public_domain