With novel technique, new study is first to definitively map the early development of PTSD

Only 23 percent of people who experience trauma develop PTSD. New research offers new clues on identifying which trauma victims will develop the disorder and suggests potential interventions. Researchers used a mobile phone app to gather information from patients in the critical 30 days after the trauma event - when symptoms interact to create the full blown disorder - the first time such extensive information has been gathered.

from Health & Medicine News -- ScienceDaily https://www.sciencedaily.com/releases/2019/12/191212122540.htm