Panic Attacks

A panic attack is a sudden, intense surge of fear or discomfort that peaks within minutes and produces a cluster of physical and mental symptoms, such as a pounding heart, shortness of breath, dizziness, a sense of unreality and the conviction that something terrible is happening. Panic attacks are not dangerous in themselves, but they feel so alarming that many people seek emergency care, fearing a heart attack or stroke. Large US surveys suggest that about 28% of adults have at least one panic attack in their lifetime.

This page covers panic attacks themselves: what they are, why they happen, what research suggests helps during and after one, and when to get support. For the formal diagnosis of recurrent attacks with persistent worry, see panic disorder. The information is educational and does not replace advice from a doctor or mental health professional.

Panic Attack Symptoms

DSM-5-TR defines a panic attack as an abrupt surge of intense fear or intense discomfort that reaches a peak within minutes, during which four or more of the following occur:

• Palpitations, pounding heart or accelerated heart rate
• Sweating
• Trembling or shaking
• Sensations of shortness of breath or smothering
• Feelings of choking
• Chest pain or discomfort
• Nausea or abdominal distress
• Feeling dizzy, unsteady, lightheaded or faint
• Chills or heat sensations
• Numbness or tingling (paresthesias)
• Derealization (feelings of unreality) or depersonalization (feeling detached from oneself)
• Fear of losing control or "going crazy"
• Fear of dying

The surge can start from a calm state or an already anxious one. An episode with fewer than four symptoms is called a limited-symptom attack. DSM-5-TR also notes that culture-specific symptoms, such as tinnitus, neck soreness or uncontrollable crying, may occur but do not count toward the four required symptoms.

Expected vs. unexpected attacks

Clinicians distinguish expected panic attacks, which have an obvious cue such as a feared situation, from unexpected attacks that occur with no apparent trigger, sometimes even during relaxation or sleep. Recurrent unexpected attacks are central to panic disorder. Expected attacks are common in conditions such as specific phobias and social anxiety disorder.

Panic attacks across conditions

A panic attack is not a mental disorder on its own. DSM-5-TR treats it as a specifier that can be added to many diagnoses, including depression, PTSD and substance use disorders, as well as some medical conditions. People who have panic attacks, whatever the context, tend to have more severe symptoms overall, which is why clinicians record them.

What a Panic Attack Feels Like

People describe panic attacks differently, but common themes recur: feeling sure they were about to die or collapse, believing they were having a heart attack, feeling as if the room was spinning or they could not get enough air, feeling detached as though watching themselves from outside, and an overwhelming urge to escape.

An attack typically follows an arc: rapid escalation over a few minutes, a peak of intense symptoms, then gradual decline. Residual tiredness, shakiness or worry can linger for hours. Because the experience is so vivid, a single attack can leave a lasting memory and a fear of the next one, sometimes called "fear of fear."

Panic Attack vs. Anxiety Attack

"Anxiety attack" is not a clinical term, but people use it informally. The table summarizes the usual distinction.

The distinction matters because panic responds well to specific techniques, such as interoceptive exposure, while ongoing worry is the focus of treatment for generalized anxiety disorder. For a detailed comparison, see panic attack vs. anxiety attack.

Causes and Triggers

The body's alarm system

The symptoms of panic are the body's fight-or-flight response, activated at full strength without a real external danger. Psychologist David Barlow described panic as a "false alarm": the same system that would help someone escape a threat fires in a safe situation. Adrenaline speeds the heart and breathing, blood flow shifts toward large muscles, and the mind narrows its focus on danger.

Biological contributors

• Sensitive threat circuits. Research implicates brain networks involving the amygdala, which detects threat, and brainstem regions that control breathing and arousal.
• Carbon dioxide sensitivity. People with panic disorder are more likely to panic when breathing air with raised carbon dioxide in laboratory studies, suggesting an oversensitive "suffocation alarm."
• Genetics. Panic disorder runs in families; first-degree relatives have a risk several times higher than average.
• Anxiety sensitivity. A trait involving fear of anxiety-related sensations predicts later panic attacks in prospective studies.

Common triggers

• Caffeine, nicotine, cannabis and stimulant drugs.
• Sleep deprivation and exhaustion.
• Overbreathing (hyperventilation).
• Hard exercise or heat, when the resulting sensations are misread as dangerous.
• Hormonal changes, such as premenstrually, after childbirth or around perimenopause.
• Withdrawal from alcohol or certain sedative medications.
• Major stress, conflict or loss.
• Places or situations linked with a previous attack.

The vicious cycle

Psychologist David M. Clark's cognitive model (1986) explains how panic escalates:

1. A normal bodily sensation occurs, such as a skipped heartbeat or lightheadedness.
2. The sensation is misinterpreted as a sign of catastrophe ("I'm having a heart attack," "I'm going to faint").
3. That interpretation triggers fear, which releases adrenaline and intensifies the sensations.
4. Stronger sensations seem to confirm the catastrophic belief.
5. The loop spirals into a full panic attack within minutes.

This model, related to catastrophizing, is the foundation of cognitive behavioral treatment for panic.

How to Stop a Panic Attack

There is no switch that instantly ends a panic attack, but research on panic treatment suggests ways to reduce the fear that fuels it and help it pass more quickly. These are general coping strategies, not a substitute for professional care if attacks are frequent or distressing.

1. Name what's happening

Saying something like "This is a panic attack. It is uncomfortable, but it will pass" reduces uncertainty and interrupts the catastrophic interpretation that drives the spiral.

2. Slow the breath

Fast, shallow breathing can intensify dizziness and tingling. Slow breathing, with the out-breath longer than the in-breath, may help settle the body. Techniques such as box breathing or paced breathing at around six breaths per minute are widely taught. Research suggests breathing techniques are helpful mainly as a coping aid; on their own they do not resolve recurrent panic. See breathing exercises for anxiety.

3. Use grounding

Grounding shifts attention to the present. The 5-4-3-2-1 technique asks a person to notice five things they can see, four they can touch, three they can hear, two they can smell and one they can taste. See grounding techniques.

4. Let the sensations rise and fall

Fighting the sensations or anxiously monitoring them tends to keep them going. Allowing them to peak and subside, without trying to force them away, is a key principle of evidence-based panic treatment, and is similar to the idea of urge surfing.

5. Stay where you are, when it is safe

Leaving the situation brings short-term relief but teaches the brain that the place was dangerous, which can increase future fear. When it is safe to do so, staying until the attack passes helps break that link. This is the principle behind exposure therapy.

6. Avoid common traps

• Gulping big, rapid breaths, which can worsen symptoms.
• Relying on "safety behaviors," such as always carrying something or sitting by exits, which can prevent learning that the situation is safe.
• Repeatedly checking pulse or searching symptoms online, which keeps attention on threat.

What to Do After

• Rest and refuel. Drinking water and having something to eat can help the body settle.
• Limit stimulants and alcohol in the following hours.
• Notice patterns. Recording when attacks happen, along with sleep, caffeine and stress levels, can reveal triggers.
• Return to normal activities. Avoiding places after an attack is understandable, but research shows avoidance tends to increase fear over time.
• Talk to someone you trust about what happened.

Nocturnal Panic Attacks

Some panic attacks wake people from sleep. Research reviewed by Craske and Tsao (2005) suggests that a substantial proportion of people with panic disorder, often estimated at around 40% to 70%, have experienced at least one nocturnal attack.

• They usually occur during non-REM sleep, often in the transition into deeper sleep, rather than arising from dreams.
• They can be mistaken for sleep apnea, heart problems or nightmares. Unlike nightmares, there is usually no dream content; unlike sleep paralysis, the person can move.
• Medical checks may be needed to rule out other causes of night-time waking with breathlessness or palpitations.
• Cognitive behavioral approaches used for daytime panic also apply to nocturnal attacks.

Treatment for Recurrent Panic

When panic attacks recur or start to shape daily life, professional treatment can help. The best-researched approach is cognitive behavioral therapy for panic, which typically includes:

• Psychoeducation about the fight-or-flight response and the panic cycle.
• Cognitive restructuring to examine catastrophic interpretations.
• Interoceptive exposure, in which a therapist guides the person to bring on mild panic-like sensations, such as spinning in a chair or breathing through a straw, so they learn these sensations are safe.
• Situational exposure to places that have been avoided, often using an exposure hierarchy.

Controlled trials of CBT for panic, including work by Barlow, Craske and Clark, show that a majority of people improve substantially, with gains often maintained at follow-up. Medication is another option a doctor may discuss; decisions about medication should be made with a prescribing clinician.

When to Seek Help

A single panic attack does not necessarily need psychiatric care, but it is reasonable to check in with a doctor, especially after a first attack. Professional support is worth seeking if:

• Attacks keep happening.
• Worry about another attack is persistent.
• Places or activities such as driving, shops or public transport are being avoided.
• Attacks interfere with sleep, work, study or relationships.
• Alcohol or other substances are being used to cope.

Recurrent unexpected attacks with persistent worry or avoidance may meet criteria for panic disorder, sometimes with agoraphobia. These are treatable conditions, and a primary care doctor or mental health professional is a good starting point.

Conclusion

Panic attacks are intensely uncomfortable but, in otherwise healthy people, not physically harmful. Many people will experience at least one. Whether a single attack develops into an ongoing problem depends less on the attack itself than on what happens next: catastrophic interpretation, fear of recurrence and avoidance. Understanding what an attack is, allowing it to pass, and seeking help if attacks keep returning are the steps research supports most strongly.