Watch:
Availability:
Sorry, this programme is not available to watch again. (why?)
Last broadcast on Sat, 29 Nov 2008, 03:35 on BBC One (see all broadcasts).
Synopsis
First of a two-part special. Ten volunteers have come together for an extraordinary test. Five are 'normal' and the other five have been officially diagnosed as mentally ill. Horizon asks if you can tell who is who, and considers where the line between sanity and madness lies.

Take it further
Discover more about the mental health conditions featured in the programme at Headroom - a BBC campaign created to encourage healthy mental wellbeing.
Visit the How Mad Are You? section at HeadroomBroadcasts
-
Tue 11 Nov 200821:00
-
Tue 18 Nov 200823:20
-
Sat 29 Nov 200803:35