http://news.bbc.co.uk/1/hi/health/7813637.stm
One question, though: what if the traumatic event was a building site accident, or a frightening experience with a Nintendo Game Boy?Playing the computer puzzle game Tetris can help reduce the effects of traumatic stress, UK researchers say.
Volunteers were exposed to distressing images, with some given the game to play 30 minutes later, the PLoS One journal reported.
Players had fewer "flashbacks", perhaps because it helped disrupt the laying down of memories, said the scientists.
However, another specialist said no study could match the intensity of a real-life traumatic experience.
Post Traumatic Stress Disorder (PTSD), often associated with experiences during conflict, can affect anyone who has suffered a sudden and shocking incident.
One of its main features is the "flashback", in which the distressing sights, sounds or smells of the incident can return in everyday life.