Anxiety attacks can last anywhere between a few moments to 30 or more minutes. It’s also common for subsequent anxiety attacks to follow, causing the overall anxiety attack experience to last much longer as one episode is followed by another. Even though anxiety attacks eventually end, it’s common for the symptoms and after effects of an anxiety attack to linger for hours or even days, depending upon the severity of the attack and the level of stress your body is under.
Anxiety can be experienced with long, drawn out daily symptoms that reduce quality of life, known as chronic (or generalized) anxiety, or it can be experienced in short spurts with sporadic, stressful panic attacks, known as acute anxiety.[18] Symptoms of anxiety can range in number, intensity, and frequency, depending on the person. While almost everyone has experienced anxiety at some point in their lives, most do not develop long-term problems with anxiety.
Additionally, there is some evidence that Acceptance and Commitment Therapy (ACT), Mindfulness-based Stress Reduction treatment (MBSR), as well as online and computerized treatments are effective in treating panic disorder (Arch et al., 2017). However, the overwhelming majority of research supports the long-term success of CBT for treating panic disorder. More research is needed to explore the extent to which MBSR and ACT work when compared to CBT and other treatments, but preliminary results are positive. In general, empirically-supported treatments that are founded on the basis of research within the psychological and medical fields are recommended for treating panic disorder.
What happens, exactly? "We all physically respond to stress," says Barbara O. Rothbaum, PhD, psychiatry professor and director, Trauma and Anxiety Recovery Program, at Atlanta's Emory University School of Medicine. "You might feel anxious about work-related problems, taking a big exam, or making an important decision. But someone who suffers from panic disorder may react to those same moderate pressures with an exaggerated physical reaction-as if he or she were about to be attacked by a wild tiger or fall from a great height. It's full-on, adrenaline-pumping, fight-or-flight response."
Selective mutism: A somewhat rare disorder associated with anxiety is selective mutism. Selective mutism occurs when people fail to speak in specific social situations despite having normal language skills. Selective mutism usually occurs before the age of 5 and is often associated with extreme shyness, fear of social embarrassment, compulsive traits, withdrawal, clinging behavior, and temper tantrums. People diagnosed with selective mutism are often also diagnosed with other anxiety disorders.