Heart pain is not necessarily caused by heart disease; there are many reasons for heart pain, and these vary with the age of onset. For instance, in middle-aged and older people, attention should be paid to the possibility of angina or myocardial infarction. Symptoms of angina often last for a few minutes and can be relieved by rest or taking nitroglycerin tablets. Myocardial infarction, on the other hand, often presents with intense heart pain located at the sternum, which persists without relief. In younger individuals, it is important to consider lung-related diseases causing pain, such as pleurisy or pneumothorax, where pain is often related to breathing. It is necessary to visit a hospital for proper examinations, including an electrocardiogram, blood tests for cardiac enzymes and troponin, and a CT scan of the lungs to determine the cause of the pain based on these tests.