The making of memory. Part 3, Is it better to forget than remember trauma?.

The last in a three-part series looking at some of the latest scientific research into how memory works, with contributions from some of the leading experts in the field. This part focuses on post-traumatic stress disorder (PTSD), powerful memories of traumatic events which intrude into the present. Research into PTSD has given new insights into how we lay down memories and the relationship between emotions, stress and memory pathways. Research in the US has revealed that PTSD can damage our brains - withering connections and killing off cells. Research experts and victims of PTSD contribute to the programme.