2008-2009: 13: How to Survive a Disaster | Horizon

Brain injuries and aggression | Horizon

An example of how brain injuries can lead to changes in personality and increased aggression.

How Mad Are You? Part 1 | Horizon

Ten volunteers have come together for an extraordinary test. Five are 'normal' and the other five have been officially diagnosed as mentall...

How Mad Are You? Part 2 | Horizon

With five 'normal' volunteers and five who have been officially diagnosed as mentally ill, Horizon asks if you can tell who is who.

How Violent Are You? | Horizon

What makes ordinary people commit extreme acts of violence? Michael Portillo investigates the dark side of human nature and discovers what it ...

Milgram's obedience study | Horizon

Watch a modern replication of Milgram's famous obedience study and see how the participants react to the situation.

Reinforcement and aggression | Horizon

Michael Portillo investigates the role of socialisation and reinforcement of aggression in different cultures.

The difficulty of diagnosis | Horizon

Mental health professionals are trying to distinguish sane from the insane and highlights the complexity of diagnosis.

The Secret Life of Your Bodyclock | Horizon

Why are people more likely to have a heart attack at eight in the morning or crash their car on the motorway at two in the aftern...