The main aspects to consider are the following: 1. If the patient is a middle-aged or young person, he or she appears weak, does not like to eat accompanied by sleep disorders, has a reduced interest in various things, is very lazy, and does not have a very pleasant feeling. Consider that the patient may be depressed and needs to be evaluated by the Anxiety and Depression Scale. If the patient has a history of coronary artery disease and has been taking diuretics for a long time, he or she should have an electrolyte test to find out if he or she has low potassium, sodium or chloride. Patients with electrolyte disorders may experience weakness and lack of desire to eat. After potassium and sodium supplementation, the patient’s symptoms may be relieved.