Chest tightness relieved after activity may be related to psychosomatic factors, or may be caused by vegetative nerve dysfunction, cardiac neurosis and other reasons. 1. Spiritual and psychological factors: If you have encountered a lot of unhappy things in the near future, resulting in irritability, it may cause chest tightness, especially indoors, the symptoms are particularly obvious. Symptoms will be significantly reduced after going outdoors for appropriate activities. 2. Phytoneurological dysfunction: the disease is a functional disease that can lead to increased excitability in some areas of the patient’s cerebral cortex, resulting in neurological dysfunction, dysregulation of the autonomic nervous system, which may cause chest tightness to be alleviated by activities, and it is considered that it may be due to long-term psychosomatic trauma or poor living habits and other factors. 3. Cardiac neurosis: patients with this disease do not have organic lesions, mostly considered to be caused by neurological dysfunction or psychosomatic factors, resulting in cardiovascular disease, which can cause patients to chest tightness, and the symptoms of appropriate activities to reduce the symptoms may also be accompanied by loss of appetite, dreams and insomnia and other symptoms. Chest tightness is reduced after activity, may also be caused by other reasons, it is recommended to consult a doctor as soon as possible, through the improvement of the relevant examination, diagnosis of the causative factors, to give targeted treatment.