Deficits in patients' ability to care for themselves and to meet other's expectations is the root challenge faced by schizophrenic people, and the one that leads to disability. It is necessary for people to clean and feed themselves before they can function in society. If a person cannot accomplish these basic tasks, they find it difficult to function with people at work or school. Hallucinations, delusions and other motivational symptoms associated with schizophrenia that can persist into periods of relative recovery make it difficult for schizophrenic people to lead consistently responsible, orderly lives. It is hard to remember to brush your teeth, for instance, when you are hearing a voice commenting on your thoughts, and telling you what a horrible person you are. Likewise, it is difficult to prioritize showing up for work on time when you are concerned that the FBI is out to get you, or that space aliens are broadcasting your thoughts by directly inserting them into other people's heads!