Use deep-breathing exercises. Breathing deeply and slowly will immediately decrease your stress level. Most people practice shallow chest breathing, drawing breath into their lungs and exhaling at a rapid rate. When we’re feeling stressed, we tend to breathe even more quickly, which stresses us out even more. Instead, focus on breathing from your diaphragm or belly.[10] Your stomach should balloon up.
Breathing deeply and slowly will draw in more air than breathing through the lungs would, and also helps decrease your blood pressure, relax your muscles, and calm you down.
Try breathing in for a count of 4, holding for a count of 3, and breathing out for a count of 4. Keeping your total number of breaths to 8 or less in one minute will help to immediately reduce anxiety levels.