The indicators of bipolar disorder are dramatic and obvious. Those who suffer from it tend to be significantly unstable in their interactions with other people and in their behavior when alone. Impulse control and the ability to discern moral decisions are significantly impaired in individuals with bipolar disorder and they are often destructive toward themselves and their relationships with others, if not downright violent. Casual contact with a person with BPD may be deceptive because many are able to appear stable, but rapid and unpredictable changes in mood and behavior are common. Neglect and abuse, particularly sexual, are found in almost everyone diagnosed with borderline personality disorder. Lack of attachments during the developmental years results in the inability to form or enhance attachments later in life. While reduced hippocampal volume is a brain deformation associated with PTSD and bipolar disorder, bipolar disorder also presents with reduced amygdala volume which is likely the cause of the marked increase in aggression and reduced emotional stability of subjects with bipolar disorder (Lieb et al., 2004, pp.