People who are in a manic state are often over-confident and very optimistic. This can cause them to take large risks and do things that are not normal for them to do. Manic episodes last for at least a week, but can last as long as three to six months. They are usually followed by a depressive episode. A person who is manic may talk very quickly with no pauses, have thoughts that change very quickly, or act without thinking. They may also experience psychosis, where they cannot tell what is real and what is not. They may think that they are unstoppable or that they are on a mission for God. Mania may become so severe that it can affect the person’s ability to work or interact with others. Every person is different, so it is important to remember that these things do not happen to all people with bipolar disorder.