How long does a panic attack last?

Most panic attacks peak within 10 minutes and last between 5 and 20 minutes total. Some people report residual symptoms — shakiness, fatigue, or a feeling of being 'off' — for up to an hour afterwards. The acute, intense phase is self-limiting: your body cannot sustain the fight-or-flight response indefinitely, so the surge will pass even without intervention.

Can a panic attack cause a heart attack?

No. A panic attack can feel remarkably similar to a heart attack — racing heart, chest tightness, shortness of breath — but it is not one. Panic attacks are caused by a surge of adrenaline, not by a problem with your heart. However, if you are experiencing chest pain for the first time and are unsure what is happening, seek medical attention to rule out a cardiac cause. Once a doctor has confirmed your heart is healthy, you can feel more confident recognising future episodes as panic.

What is the difference between a panic attack and an anxiety attack?

A panic attack is a sudden, intense surge of fear that peaks within minutes and is recognised as a clinical condition in the DSM-5. An 'anxiety attack' is not a formal clinical term — it refers informally to a period of heightened worry that builds gradually and may last hours or days. Panic attacks hit fast, peak fast, and may have no identifiable trigger. Anxiety tends to be tied to a specific stressor and builds more slowly.

Should I go to the emergency room for a panic attack?

If it is your first episode and you are not sure whether it is a panic attack or a medical emergency, go. Chest pain, difficulty breathing, and dizziness should always be evaluated by a doctor the first time they happen. Once you and your doctor have established that your symptoms are panic-related, you can usually manage future attacks with coping techniques and, if needed, a treatment plan from a mental health professional.

What to Do During a Panic Attack: A Step-by-Step Guide

Your heart is slamming against your chest. You cannot catch your breath. You are certain something is terribly wrong — a heart attack, maybe, or something worse. Everything feels unreal, like the room is closing in. This is a panic attack, and while it feels like a medical emergency, it is almost always your body's alarm system misfiring. The good news: it will pass, and there are things you can do right now to help it pass faster.

What Is a Panic Attack?

A panic attack is a sudden surge of intense fear or discomfort that peaks within minutes. The DSM-5 — the diagnostic manual used by mental health professionals — defines it as an episode in which four or more of the following symptoms appear abruptly:

Racing or pounding heart
Sweating
Trembling or shaking
Shortness of breath or a feeling of being smothered
A choking sensation
Chest pain or tightness
Nausea or stomach distress
Dizziness, lightheadedness, or faintness
Chills or hot flushes
Numbness or tingling
Feeling detached from yourself (depersonalisation) or from reality (derealisation)
Fear of losing control
Fear of dying

Most panic attacks peak within 10 minutes and last between 5 and 20 minutes in total, though some people report lingering symptoms for up to an hour. They are not medically dangerous — but they can feel indistinguishable from a medical emergency, which is why so many people end up in the emergency room during their first one. Cleveland Clinic notes that up to 11% of people experience at least one panic attack per year.

A panic attack is not the same as an "anxiety attack." The term "anxiety attack" is not a clinical diagnosis — it refers informally to periods of intense worry that build gradually. Panic attacks, by contrast, hit suddenly, peak fast, and are recognised as a distinct condition in the DSM-5.

What Happens in Your Body During a Panic Attack

A panic attack is essentially a false alarm in your body's threat-detection system. Here is the chain of events:

Your amygdala — the brain's fear centre — detects a threat (real or imagined) and fires an alarm signal. That alarm triggers your sympathetic nervous system, flooding your body with adrenaline and cortisol. Your heart rate spikes, breathing becomes rapid and shallow, muscles tense, and blood flows away from your digestive system toward your limbs — the classic fight-or-flight response. Meanwhile, your prefrontal cortex — the rational, thinking part of your brain — is temporarily sidelined, making it nearly impossible to reason your way out of the fear.

The result is a body in full survival mode with a thinking brain that cannot explain why. That mismatch between how intense it feels and how safe you actually are is what makes panic attacks so frightening.

What happens	During a panic attack	What it means
Heart rate	Rapid, pounding	Adrenaline preparing muscles for action
Breathing	Fast and shallow	Body increasing oxygen intake — often tips into hyperventilation
Chest tightness	Pressure or pain	Muscle tension and hyperventilation, not a heart problem
Dizziness	Lightheaded, unsteady	Blood pressure shifts and CO2 imbalance from rapid breathing
Numbness or tingling	Hands, face, limbs	Hyperventilation reducing blood CO2 levels
Derealisation	World feels unreal	Brain overwhelmed by sensory overload
Duration	Peaks in under 10 minutes	The surge is self-limiting — it will pass

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What to Do During a Panic Attack: Step by Step

You cannot think your way out of a panic attack while it is happening — your prefrontal cortex is offline. But you can use your body to send safety signals back to your brain. These techniques work with your physiology, not against it.

1. Remind yourself: this will pass. A panic attack is your body's alarm system, not a medical emergency. It will peak and fade — usually within 10 to 20 minutes. Even just knowing this can reduce the fear-of-fear cycle that makes attacks worse. Harvard Health notes that reminding yourself "this is uncomfortable but not dangerous" can help interrupt the escalation.

2. Slow your breathing. Panic attacks almost always involve hyperventilation — fast, shallow breathing that drops your blood CO2 levels and causes dizziness, tingling, and chest tightness. Slowing your breath reverses this. Try inhaling through your nose for 4 counts and exhaling through your mouth for 6 counts. The longer exhale activates your vagus nerve, which signals your parasympathetic nervous system to start calming the alarm. A meta-analytic review published in Clinical Psychology Review found that respiratory interventions produced large effects on anxiety symptoms.

3. Ground yourself with the 5-4-3-2-1 technique. Name 5 things you can see, 4 you can touch, 3 you can hear, 2 you can smell, and 1 you can taste. This pulls your attention out of your head and into the room, re-engaging your prefrontal cortex and giving your brain real-time, non-threatening sensory information to process.

4. Use cold to trigger your dive reflex. Splash cold water on your face, hold an ice cube, or press a cold cloth against your cheeks or forehead. This activates the mammalian diving reflex — a physiological response that stimulates the vagus nerve through the trigeminal nerve, slowing your heart rate and shifting your nervous system toward calm. Research published in Frontiers in Psychiatry found that the diving response has promising implications for reducing panic symptoms.

5. Relax your muscles deliberately. Anxiety locks your muscles in tension — often without you noticing. Try progressive muscle relaxation: clench your fists as tightly as you can for five seconds, then release. Move to your forearms, shoulders, jaw, and legs. The deliberate release sends a "safe" signal to your brain.

6. Do not fight it. This sounds counterintuitive, but trying to suppress or escape a panic attack often makes it worse. Acceptance-based approaches — acknowledging "I am having a panic attack, this is unpleasant but not dangerous, and it will pass" — can reduce the intensity and shorten the episode. Resisting adds a second layer of distress on top of the first.

After the Attack Passes

Once the acute symptoms fade, your body may feel drained — shaky, tired, emotionally raw. That is normal. Your nervous system just ran a full emergency drill. A few things that may help:

Rest and hydrate. Adrenaline burns through energy and can leave you feeling hollow.
Avoid caffeine and alcohol. Both can increase vulnerability to a follow-up episode.
Note what happened. Write down the time, what you were doing, any triggers you can identify, and which techniques helped. Over time, this log can reveal patterns.
Do not avoid the situation where the attack happened (unless it was genuinely dangerous). Avoidance can feed the fear-of-fear cycle and, in some cases, contribute to agoraphobia — a narrowing of your world driven by worry about having another attack.

When Panic Attacks Need More Than Self-Help

The techniques above can help you get through a panic attack — but they are coping tools, not treatment. If panic attacks are a recurring part of your life, professional support can make a real difference.

Consider reaching out to a therapist or doctor if:

You have had more than one unexpected panic attack
You spend significant time worrying about the next one
You are avoiding places, people, or activities because of panic
Panic attacks are interfering with your work, relationships, or daily life
You are unsure whether your symptoms are panic or a medical condition — chest pain, difficulty breathing, and dizziness should always be checked by a doctor the first time they happen

Cognitive behavioral therapy (CBT) is the most evidence-based treatment for panic disorder. The NIMH, APA, NHS, and Cleveland Clinic all recommend it as a first-line approach. CBT for panic disorder often includes interoceptive exposure — gradually and purposefully experiencing panic-like sensations in a safe setting — which helps your brain learn that the symptoms themselves are not dangerous.

Try It in Unxiety

Unxiety's one-tap panic button is designed for exactly this moment — when a panic attack hits and you need help fast. It launches a guided breathing exercise immediately, with a visual pacer that gives you something to follow when your thinking brain is offline. The Breathe tab has structured exercises like box breathing and the physiological sigh for longer practice, and the Ground tab offers sensory grounding techniques like the 5-4-3-2-1 method. Everything works completely offline — no account, no cloud, no signal required.