The common causes of deep breathing include respiratory diseases, cardiac insufficiency, neurological disorders and psychosomatic factors. 1. Respiratory diseases: if the patient can not lift the breath and always want to take a deep breath, accompanied by cough, cough and wheeze and other symptoms, suggesting that the patient may be suffering from wheezing bronchitis, bronchial asthma, pneumonia, pleurisy with pleural effusion and other diseases. 2. Cardiac insufficiency: if the patient can not lift the breath and always want to inhale deeply, accompanied by chest tightness, chest pain and other related symptoms, suggesting that the patient may be due to the existence of coronary heart disease, angina pectoris and other related diseases. 3. Neurological disorders: if the patient can not lift the breath and always want to take a deep breath, at the same time, choking and coughing, muscle weakness, numbness of the hands and feet and other symptoms, often suggests that the neurological factors lead to symptoms, such as the presence of peripheral neuropathy, motor neuron disease, neuromuscular junction disease. 4. Psychological factors: If the patient can not lift the breath and always want to take a deep breath at the same time, accompanied by low mood, anxiety, stress, often crying, and even anorexia performance, it usually suggests that the patient has psychiatric disorders, such as depressive disorders. Deep breathing can be seen in a variety of reasons, it is recommended to improve the relevant laboratory tests for evaluation, clear diagnosis and standardized treatment, to avoid delaying the condition.