Singing can lead to an increase in blood pressure. If hypertensive patients have high blood pressure values and do not effectively apply drugs to control their blood pressure, they can make their blood pressure rise further during singing, which may induce the occurrence of cardiovascular diseases, such as acute myocardial infarction, or acute cerebral thrombosis, etc. Therefore, it is recommended that hypertensive patients perform amateur activities such as singing after their blood pressure has been controlled and stabilized. However, for non-hypertensive people, singing is a good activity because it can effectively adjust the pressure in the thoracic cavity through breathing and increase the function of the intercostal muscles as well as the diaphragm, while the pressure change in the thoracic cavity will also improve the function of the heart, so singing is a beneficial form of exercise.