In another study of Columbia undergraduates, Bonanno found that students lived through an average of six potentially traumatic events in their four years at college.
The study involved patients who visited an emergency department after traumatic events, including car crashes and work-related accidents.
He could then analyze what they had remembered or expressed and determine what traumatic events in their past had caused their current suffering.
And while it’s not clear exactly what causes hikikomori, traumatic events such as bullying, failing a test or not getting a job are often reported as triggers.
He was robbed，beaten，and even tortured during this particular lifetime，and at certain junctures，this soul seemed to be attracted to reexperiencing traumatic events。
It is difficult to believe, but people tend to remember past traumatic events and their feelings at those moments.
From his joint analysis of financial crises over 800 years, Prof Rogoff told US radio: "These are very traumatic events."
