What it is
A panic attack is a sudden surge of intense fear or discomfort that peaks within minutes and includes physical symptoms such as racing heart, shortness of breath, chest tightness, sweating, trembling, dizziness, or a feeling of unreality. Panic attacks are common, can occur without an obvious trigger, and are not dangerous in themselves — but they can feel terrifying.
Why the symptoms feel so physical
The body activates a fight-or-flight response: adrenaline rises, breathing speeds up, blood is redirected to large muscles. Hyperventilation alters blood CO2 and produces the dizziness, tingling and chest tightness that often convince people something is medically wrong.
What helps in the moment
Slow the exhale (4-7-8 or box breathing). Name what is around you. Remind yourself the wave will peak and pass — typical panic peaks in 5–10 minutes. Do not run from safe situations; avoidance teaches the brain the place is dangerous and makes future panic more likely.
When to get assessed
If panic attacks are recurrent, you fear having more, or you are avoiding places or activities, that pattern is called panic disorder and is highly treatable. NICE and NIMH recommend cognitive behavioural therapy (CBT) as first-line, with medication options when indicated.