Diaphragmatic breathing, also known as abdominal or belly breathing, is a technique that focuses on breathing deeply into the diaphragm to improve lung function and oxygen intake. This technique helps to increase the efficiency of breathing, reduce stress, and enhance relaxation by engaging the diaphragm rather than shallow chest breathing. Diaphragmatic breathing is commonly used in rehabilitation for individuals with respiratory conditions, anxiety, or those recovering from surgery. It helps to strengthen the diaphragm, improve respiratory capacity, and reduce the work of breathing.

Diaphragmatic breathing is often taught in pulmonary rehabilitation programs, stress management sessions, and physical therapy to improve breathing mechanics and overall lung health. This technique also helps to activate the parasympathetic nervous system, promoting relaxation and reducing symptoms of anxiety and shortness of breath.