Prognosis
Living with KLS can be difficult. Many patients report depression during one or more episodes. While the major symptoms may seem innocent enough to some (copious amounts of sleeping, eating, and sexual behavior) the effects can be very debilitating. At the very least, KLS makes it difficult to maintain a normal job—and in some cases criminal charges have resulted from unrestrained sexual behavior. Periodic binges associated with the episode can lead to weight gain, and KLS patients often exhibit an above-average BMI, but no mention of obesity is made in the literature. KLS patients may also suffer from psychosocial stigma because their unusual activities during an episode are not understood by others. Many patients report embarrassing episodes from early in their adolescence before KLS was considered a viable diagnosis.
In many cases, the disorder disappears as mysteriously as it appears; often when patients reach their twenties. Of the patients that have been studied, more than 90% will outgrow KLS symptoms and even those who have some degree of it left after ten years, it is usually much, much milder.
Read more about this topic: Kleine-Levin Syndrome