Breathing exercises are the foundation of many other relaxation techniques and are very easy to learn. These exercises work to help you breathe slowly and deeply, which can allow you to feel more relaxed. Breathing exercises have been known to have a cleansing effect. Thus, they will make you feel energized and refreshed. Also, deep breathing brings your focus and attention to the breathing process. Therefore, clearing your mind and helping you to control the rhythm of your breath.
These exercises can help improving other common symptoms of panic, such as decreasing rapid heart rate and managing shortness of breath. So, try to take deep breaths every now and then.