"trauma results from an event, series of events, or set of circumstances that is experienced by an individual as physically or emotionally harmful or threatening and that has lasting adverse effects on the individual's functioning and physical, social, emotional or spiritual well-being".
Two people may be exposed to the same event or series of events but experience and interpret these events in vastly different ways.
In the study (Kessler et al.,1999) 61 percent of men and 51 percent of women reported experiencing at least one trauma in their lifetime.