It is not an inevitable part of aging, however. OBS is not a separate disease entity, but is a general term used to categorize physical conditions that can cause mental changes . Prevention for most of these disorders are unknown.
Symptoms vary with the specific disease.
Treatment varies with the specific disorder. Many of the disorders have nonspecific treatments, primarily supportive care to assist the person in areas where brain function is lost. Medications may be needed to reduce aggressive behaviors typical of some of the conditions in this category. See the specific disorder. Some disorders are acute and treatable, but many are chronic or progressive.