What describes panic attacks?

Panic attacks are characterized by sudden and intense episodes of fear or discomfort that typically peak within minutes. During these episodes, individuals may experience a range of physical symptoms such as heart palpitations, shortness of breath, trembling, or feelings of impending doom. These attacks are often unpredictable and can occur without any obvious trigger.

The correct description emphasizes that panic attacks are periodic and can occur suddenly before gradually subsiding, which aligns with the typical experience of individuals suffering from panic disorder. Understanding this aspect is crucial for recognizing the nature of panic attacks and differentiating them from other mood disorders or anxiety conditions, which may have longer durations or different symptom presentations.