The heart rate of patients with cardiac neurosis is usually not fast all the time, but usually accelerates at the onset, and the onset can be triggered by external stimuli such as anxiety, stress, and trauma. Cardiac neurosis, also known as cardiovascular neurosis, is a common clinical syndrome characterized by symptoms related to cardiovascular diseases. The patient’s heart rate is usually not fast all the time, but is often induced by factors such as anxiety, nervousness, and trauma that cause both the excitation and inhibition processes of the central nervous system to be impeded, thus inducing the onset of the disease and accelerating the heart rate. Patients with cardiac neurosis often have symptoms associated with cardiovascular disease such as palpitations, chest pain, chest tightness, shortness of breath, etc., accompanied by insomnia, irritability, and depressed mood. When electrocardiograms are performed at the onset of the disease, the results often suggest that the patient has sinus tachycardia and sinus arrhythmia. In daily life, patients should pay attention to regulating their mood, maintaining a stable mood, and developing good living habits. The treatment of cardiac neurosis should follow the doctor’s instructions and consult the doctor promptly if there is any discomfort.