Suffering from myocarditis, fear of emotional stimulation. Myocarditis is caused by viral infection resulting in damage to the myocardium. Severe myocardial damage requires bed rest, maintaining a pleasant mood, and treatment with effective medication under the guidance of a doctor. Frequent anger or temper tantrums can cause increased sympathetic nervous excitability, leading to faster heart rates and increased cardiac burden. In severe cases, it can lead to acute heart failure, arrhythmias, cardiogenic shock, or even sudden death. Therefore, after being diagnosed with myocarditis, it is crucial to pay close attention to maintaining a cheerful mood and actively cooperating with the doctor for effective treatment.