Quick Answer:
Most panic attacks come on suddenly, peak within about 10 minutes, and pass within 5 to 20 minutes — though some last up to an hour and can leave you feeling tired or on edge afterward. Panic attacks are frightening but not dangerous and cause no physical harm.
The typical timeline
A panic attack usually starts abruptly, builds to a peak of intensity within roughly ten minutes, and then eases off.[2] The whole episode most often lasts between 5 and 20 minutes, occasionally up to an hour.[1] Afterwards, it's common to feel drained or a little "on edge" for a while — that's normal and passes.
Why it feels like it will never end (but always does)
The racing heart, tight chest, dizziness, and sense of dread are caused by a surge of adrenaline — your body's fight-or-flight alarm firing without a real threat. It feels alarming, but the response can't harm you, and your body physically cannot sustain it for long.[1] Knowing there's a natural time limit can make the peak easier to sit with.
How to ride it out
You can't force a panic attack to stop, but you can shorten it and make it less frightening: slow your breathing with a long exhale, ground yourself in your senses, and remind yourself this is a panic attack, it isn't dangerous, and it will pass.
Need help through one right now?
Our free Panic Attack Helper walks you through it step by step — breathing, grounding, and reassurance. Or slow your breath with the breathing tool.
Open the Panic Helper →When to seek help
Because some symptoms overlap with heart or breathing problems, it's reasonable to get checked the first time you have them — or if you have severe chest pain, pain spreading to the arm or jaw, or a known heart condition — to rule out other causes.[2] You should also see a doctor if panic attacks keep recurring or you're living in ongoing fear of the next one; cognitive behavioural therapy (CBT) is highly effective for panic.[1] Explore our Anxiety Center for more.
Sources & References
- [1] NHS — Panic disorder
- [2] Cleveland Clinic — Panic Attacks & Panic Disorder
For general information only, not a substitute for professional care. If symptoms are severe or you're unsure they're anxiety, seek medical help. In a crisis, contact a professional or a crisis line (988 US, Samaritans 116 123 UK & ROI).