Chest tightness that is not caused by disease can be relieved by yourself, such as sudden and occasional chest tightness without any premonition, you can shift your attention and regulate your emotions, etc.; if it is a disease that causes long-term recurring chest tightness, such as bedridden or chest tightness after exertion, it may be related to the poor function of the heart, and you need to consult a doctor in time, and you can’t relieve it by yourself. 1. Non-disease factors: you can shift your attention, talk to people more, go outdoors to moderate activities, you can reduce chest tightness, usually go out for a walk, keep a good mood, positive mind. 2. Poor heart function: If the chest tightness is more obvious when lying down, aggravated by activities, it may be related to poor heart function, poor contraction and diastolic function of the heart, the increase in the amount of return blood will aggravate the chest tightness, you can elevate the head of the bed in a semi-recumbent position. When this happens, you should go to the regular hospital in time. If there is any discomfort, it is recommended to go to the hospital in time.