The causes of inexplicable irritability and temper tantrums need to be analyzed according to past history, as follows: 1. For patients with a significant past history of coronary heart disease, the above-mentioned situation occurs, taking into account that the patient has coronary artery ischemia, stenosis, spasm, which causes insufficient oxygen supply to the cardiomyocytes; 2. Those who have anxiety disorders, obsessive-compulsive disorder, phobias, depression, bipolar disorder and other psychosomatic disorders are prone to 3.When patients have serious endocrine diseases, such as severe hyperthyroidism and hyperadrenocorticism, they may also have the above symptoms. 4.In the case of hypertension, especially when sympathetic tone is increased, they may also have the above symptoms. 5.When excessive mental tension, stress, overexertion, poor rest and sleep, they may also have clinical symptoms of irritability. 5. Clinical symptoms of irritability may also occur when there is excessive mental tension, stress, overexertion, poor rest and sleep.