If a patient has an accelerated heartbeat after a nap: 1. Consider whether the patient has a plant nerve dysfunction, such as cardiac neurosis can cause tachycardia after a nap. 2. Endocrine metabolic diseases, such as hyperthyroidism, hyperadrenocorticism, will also have an accelerated heartbeat after a nap. 3. Infectious diseases, such as bacteria, viruses, mycoplasma infection of the human body, the body will appear 4, organic heart disease, such as coronary heart disease, myocarditis, pericarditis, heart valve disease, congenital heart disease, hypertrophic obstructive cardiomyopathy, will also have arrhythmias.