Final answer:
The most immediate response to bring relief when experiencing panic attacks is to do slow, deep breaths.
Step-by-step explanation:
The most immediate response to bring relief when a person experiences panic attacks is to do slow, deep breaths. Breathing exercises help activate the body's relaxation response and reduce the intensity of panic symptoms. By focusing on deep, slow breaths, the individual can restore their oxygen levels and regulate their heart rate, helping to bring a sense of calm.