Physiological causes such as climbing stairs can lead to chest tightness and shortness of breath due to physical strength, which will be relieved by rest without treatment, and usually strengthen exercise to improve cardiopulmonary function. Pathological causes are myocardial ischemia caused by coronary atherosclerosis. If you are middle-aged and often have irregular chest tightness and shortness of breath, it is caused by cardiovascular disease, so you should pay enough attention to it. If there is no precordial pain, you can eat compound salvia tablets to dilate blood vessels and increase myocardial blood supply, which can relieve the symptoms. If occasional precordial tingling occurs and is short-lived, this is the development of angina pectoris, which requires timely treatment, and you can eat bisoprolol 5mg, taken orally once a day. Also test the blood lipids, if the blood lipids are elevated usually eat a light diet, oral simvastatin tablets 10mg, once a day.