The present invention relates to a method for diagnosing a mood disorder, such as mania, depression and mixed mania, by using a circadian rhythm. The diagnostic method according to the present invention can objectively and clearly diagnose the state of a mood disorder through the advance or delay of a circadian rhythm. In other words, among the types of mood disorders, hypomania, mania, depression, and whether it is a mixed disorder and so forth can be clearly determined, thereby allowing a prompt and appropriate therapeutic mediation. Also, the diagnostic method according to the present invention can clearly distinguish severe depression, or schizophrenia which is frequently confused with a bipolar disorder. Further, the method can help the selection of a therapeutic drug to a great extent.
METHOD FOR DIAGNOSING MOOD DISORDER BY USING CIRCADIAN RHYTHM