What are anxiety disorders?

Everyone feels anxious or afraid sometimes. For example, many people feel nervous before an exam, job interview, presentation, or important decision. In those situations, anxiety is a normal human response. It can even be helpful, because it prepares the body and mind to deal with challenge or danger.

An anxiety disorder is different. Anxiety disorders involve excessive fear, worry, or avoidance that is persistent and strong enough to interfere with daily life, work, relationships, school, or social functioning. The anxiety is usually difficult to control and often lasts much longer than the situation itself.

In general, fear refers to an immediate response to a current threat, while anxiety is more often related to anticipating future danger or negative outcomes. Both can lead to emotional and physical symptoms such as nervousness, muscle tension, sweating, a racing heart, dizziness, panic, and avoidance behaviour.

There are several different types of anxiety disorders, including social anxiety disorder, generalized anxiety disorder, panic disorder, agoraphobia, specific phobia, separation anxiety disorder, and selective mutism. Although these disorders overlap, they differ in their main fears, symptoms, onset, and impact.

This page explains the main types of anxiety disorders, their symptoms, how they differ, and when treatment may be helpful.

Common symptoms of anxiety disorders

Although the symptoms differ between the various anxiety disorders, most people experience a combination of emotional, cognitive, behavioral, and physical symptoms. These symptoms can vary in intensity, but they often follow a similar pattern of fear, tension, and avoidance.

Common symptoms include:

• Emotional symptoms: excessive fear, worry, or a constant sense of danger
• Cognitive symptoms: overthinking, difficulty concentrating, expecting worst-case scenarios
• Behavioral symptoms: avoidance of situations, people, or places that trigger anxiety
• Physical symptoms: muscle tension, sweating, racing heart, dizziness, shortness of breath
• Restlessness or feeling constantly “on edge”
• Difficulty relaxing
• Sleep problems

Not everyone experiences all of these symptoms, and the exact pattern depends on the type of anxiety disorder. In many cases, symptoms become more persistent over time, especially when avoidance and safety behaviours start to limit daily functioning.

Types of anxiety disorders

Anxiety disorders are not all the same. While they share a common pattern of fear, worry, and avoidance, they differ in the specific situations, triggers, and thoughts that drive the anxiety.

The main anxiety disorders described in diagnostic systems include social anxiety disorder, panic disorder, agoraphobia, specific phobia, generalized anxiety disorder, separation anxiety disorder, and selective mutism. Each has its own focus, but many overlap in symptoms and underlying mechanisms.

Below is a brief overview of the most common types of anxiety disorders.

Social anxiety disorder

Social anxiety disorder involves a strong fear of being judged, embarrassed, criticized, or rejected in social or performance situations. People with social anxiety may fear speaking in groups, meeting unfamiliar people, eating in public, or being the center of attention.

This fear is often driven by concerns about making mistakes, being negatively evaluated, or not meeting expectations. As a result, social situations can trigger intense self-consciousness, physical anxiety symptoms, and a strong urge to avoid or escape.

Over time, this can lead to avoidance, reduced confidence, and increased sensitivity to social situations. Common safety behaviours include rehearsing conversations, avoiding eye contact, staying quiet, or relying on others for reassurance.

Read more about:
what social anxiety disorder is,
social anxiety causes,
social anxiety symptoms,
diagnosis,
treatment, and the
social anxiety test.

Panic disorder

Panic disorder is characterized by recurrent and unexpected panic attacks, followed by persistent fear of having another one. A panic attack is a sudden surge of intense fear accompanied by symptoms such as heart palpitations, shortness of breath, dizziness, chest tightness, trembling, or fear of losing control.

After one or more panic attacks, many people become highly focused on their bodily sensations and start to fear that another attack could happen at any moment. This “fear of fear” often leads to increased anxiety, hypervigilance, and anticipatory worry.

As a result, people may begin avoiding places or situations they associate with panic, such as public transport, crowded spaces, or being far from home. Over time, this avoidance can expand and significantly restrict daily functioning.

Read more about:
panic disorder,
causes,
diagnosis,
treatment,
the panic disorder test, and
how to stop panic attacks.

Agoraphobia

Agoraphobia involves fear of being in places or situations where escape may feel difficult, embarrassing, or unavailable if panic-like symptoms occur. Common triggers include public transport, crowds, open spaces, enclosed spaces, shops, or being outside the home alone.

This fear is often linked to panic symptoms such as dizziness, shortness of breath, or a racing heart. Over time, people may start avoiding more and more situations to prevent anxiety or panic attacks. In more severe cases, agoraphobia can lead to strong avoidance and even becoming largely housebound.

Read more about:
agoraphobia and the
agoraphobia test.

Specific phobia

A specific phobia is an intense and persistent fear of a specific object or situation, such as spiders, heights, needles, flying, blood, or confined spaces. The fear is out of proportion to the actual danger, but the anxiety feels very real and can trigger strong physical symptoms.

When confronted with the feared object or situation, people may experience panic, avoidance, or a strong urge to escape. Although avoidance provides short-term relief, it often reinforces the fear and makes it stronger over time.

Read more about:
specific phobia,
symptoms,
causes,
treatment,
the test, and
facts.

Generalized anxiety disorder

Generalized anxiety disorder (GAD) is characterized by excessive and difficult-to-control worry about everyday topics such as health, work, family, finances, and responsibility. The worry is persistent and often accompanied by tension, fatigue, irritability, sleep problems, and difficulty relaxing.

People with GAD often feel that worrying helps them prepare, prevent mistakes, or stay in control. However, this strategy tends to backfire. The more someone worries, the more uncertain and threatening situations start to feel, which increases anxiety over time.

This creates a cycle in which worry temporarily reduces uncertainty but ultimately reinforces the need to keep worrying. As a result, many people with GAD feel mentally exhausted and find it difficult to switch off their thoughts.

Read more about:
GAD,
causes,
diagnosis,
treatment,
the GAD test, and
facts.

Separation anxiety disorder

Separation anxiety disorder involves excessive distress and worry about being separated from an attachment figure or loved one. A person may fear that something bad will happen to the other person, struggle to be alone, avoid separation, or experience physical symptoms during or before separation.

The anxiety is often driven by a strong need for safety and reassurance, combined with difficulty tolerating uncertainty about the wellbeing of others. Even short separations can trigger intense worry, physical discomfort, or a strong urge to stay close.

Although often associated with children, separation anxiety can also occur in adults, where it may affect relationships, independence, and daily functioning.

Read more about:
adult separation anxiety.

Selective mutism

Selective mutism is an anxiety disorder in which a child, and more rarely an adult, consistently does not speak in certain social situations despite being able to speak normally in safe or familiar settings. It is strongly associated with social anxiety and often involves marked shyness, fear of attention, avoidance of eye contact, and difficulty expressing oneself in unfamiliar settings.

The silence is not voluntary, but driven by anxiety. In situations that feel unsafe or overwhelming, the person may feel unable to speak, even when they want to. This can lead to misunderstandings, social difficulties, and increased self-consciousness over time.

Because selective mutism can overlap with autism spectrum features, trauma-related mutism, or extreme inhibition, careful assessment is important.

Treatment for anxiety disorders

Most anxiety disorders respond well to evidence-based treatment. Although the exact approach depends on the type of anxiety disorder, many treatments focus on reducing avoidance, changing unhelpful thinking patterns, and helping people gradually face feared situations.

Common treatment approaches include:

• Cognitive behavioral therapy (CBT), which helps identify and change unhelpful thought patterns
• Exposure therapy, which involves gradually facing feared situations to reduce anxiety over time
• Reducing avoidance and safety behaviours that maintain anxiety
• Learning to tolerate uncertainty and physical anxiety symptoms
• Improving coping skills and emotion regulation

These approaches are often combined in a structured treatment plan. Over time, treatment helps break the cycle of fear and avoidance, allowing people to regain confidence and return to normal daily activities.

When to seek help

It may be helpful to seek professional support if anxiety:

• interferes with work, study, or relationships
• causes strong avoidance
• leads to panic attacks or frequent physical symptoms
• keeps returning despite self-help efforts
• causes significant distress or loss of freedom

Early support can prevent anxiety from becoming more severe and can help reduce avoidance patterns before they become deeply ingrained.