When a patient has a rapid heartbeat after taking a shower, it is likely that the patient has a rapid heartbeat due to poor ventilation induced myocardial ischemia in a relatively closed space. It may be that there is a disorder of phytonadic dysfunction or cardiac neurosis in itself, which may lead to a rapid heartbeat due to the prolonged bathing time. Patients are advised to take appropriate drugs that inhibit sympathetic excitability. It is recommended that drugs like Bisoprolol or Metoprolol be taken orally to relieve the symptoms of panic and palpitations. It is also recommended that patients can further rule out the presence of organic lesions, such as chest X-ray, ambulatory electrocardiogram, cardiac ultrasound, and for patients who have high risk factors for coronary artery disease on a regular basis, coronary CT can also be further examined.