​​Breathing exercises are techniques focusing on controlling the rate, depth, and pattern of your breath, often using the diaphragm for deep, slow breaths (diaphragmatic or belly breathing) to promote relaxation, reduce stress, improve lung function, lower heart rate/blood pressure, and increase oxygenation, involving conscious inhalation through the nose and controlled exhalation, often through pursed lips or mouth. Common types include diaphragmatic breathing, pursed-lip breathing, and equal breathing.