WHY YOU CAN’T STAY AWAKE: OTHER TYPES OF DOES – PSYCHIATRIC DOES

Sometimes excessive sleepiness can mask the presence of depression, especially if the depression is of the type known as bipolar or manic-depressive illness (where periods of euphoria or mania are followed by depressed periods). As we have seen, however, the more common type of depression, classified as unipolar, usually results in a different sleep problem, that of early-morning insomnia.Besides depression, there are other, far less common, psychiatric conditions that may include excessive daytime sleepiness as a symptom. Generally these are the dissociative disorders in which the victim loses touch with reality through amnesia or some other cause. An example is the fugue state, in which victims suddenly lose all recollection of past or current life, usually wandering off to begin a totally new existence with a new identity in a new location, completely unaware that anything has changed. After a few days or weeks these individuals will suddenly “come to,” returning to their prior identity, unable to remember how they got where they are. Needless to say, such conditions, while fortunately rare, can be extremely distressing. Hypersomnia is also present in many cases of schizophrenia and in borderline personality disorders.*156\226\8*