A panic attack is a sudden and intense episode of anxiety, fear or discomfort that causes a range of physical and emotional symptoms. These attacks often occur without warning, even in situations where there is no real danger, and can feel overwhelming and frightening. They typically peak within 10–20 minutes but can sometimes last longer. An occasional panic attack is perfectly normal, however if they become frequent or interfere with your daily life, you may want to seek professional support. If they become persistent and severe, it’s possible to develop a panic disorder.