I. What is bipolar disorder It is a mood disorder. Patients show high and low moods, different from the emotional ups and downs of ordinary people. When the disease is severe, it can make the patient have difficulties in family, work, study or social aspects, and even cause suicide. II. What are the causes There is no single cause. Family health history, brain chemistry plays an important role in constituting the disease. Individual personality and mental stress may also trigger the disease. What are the symptoms Patients can have extreme mood changes, ranging from high moods to low moods, with a normal period between episodes. Patients may experience the following changes. High mood (can be only partially symptomatic): good mood, increased activity, high energy, thinking too much and too fast, talking more or faster than usual, sleeping less and not feeling tired, poor judgment, reduced self-control, like to spend money, exaggerating their abilities, etc. Depressed mood (can be only partially symptomatic): Feeling sad, crying for no clear reason Feeling hopeless or empty Feeling guilty or worthless Loss of previous pleasure Decreased energy or feeling tired Sleeping too much or not enough Eating more or less than before Even thinking about suicide IV. Since relapses often occur, treatment must be continued. There should be a mixture of medication (emotional stabilizers, etc.) and psychotherapy (learning to control stress, etc.). Sometimes it is necessary to change and adjust the treatment (type and dosage of medication.) Also, support from family, friends, psychotherapy and self-help groups is helpful.