bipolar disorder is a form of mood disorder characterised by a variation of mood between a phase of manic or hypomanic elation, hyperactivity and hyper imagination, and a depressive phase of inhibition, slowness to conceive ideas and move, and anxiety or sadness. As described below, there are several forms of bipolar disorder. It should be noted that this disorder does not consist of mere "ups and downs". Ups and downs are experienced by virtually everyone and do not constitute a disorder. Th...

Antisocial personality disorder (APD) is a personality disorder which is often characterised by antisocial and impulsive behaviour. APD is generally (if controversially) considered to be the same as, or similar to, the disorder that was previously known as psychopathic or sociopathic personality disorder. Approximately 3% of men and 1% of women have some form of antisocial personality disorder (source: DSM-IV).