In response to threat and injury, animals, including humans, execute biologically based, non-conscious action patterns that prepare them to meet the threat and defend themselves. The very structure of trauma, including activation, dissociation and freezing are based on the evolution of survival behaviors. When threatened or injured, all animals draw from a "library" of possible responses. We orient, dodge, duck, stiffen, brace, retract, fight, flee, freeze, collapse, etc. All of these coordinated responses are somatically based- they are things that the body does to protect and defend itself. It is when these orienting and defending responses are overwhelmed that we see trauma.The bodies of traumatized people portray "snapshots" of their unsuccessful attempts to defend themselves in the face of threat and injury. Trauma is a highly activated incomplete biological response to threat, frozen in time. For example, when we prepare to fight or to flee, muscles throughout our entire body are tensed in specific patterns of high energy readiness. When we are unable to complete the appropriate actions, we fail to discharge the tremendous energy generated by our survival preparations. This energy becomes fixed in specific patterns of neuromuscular readiness. The person then stays in a state of acute and then chronic arousal and dysfunction in the central nervous system. Traumatized people are not suffering from a disease in the normal sense of the word- they have become stuck in an aroused state. It is difficult if not impossible to function normally under these circumstances.

There are two types of memory frequently experienced by individuals who have had overwhelming trauma that has been suppressed psychologically or chemically. The first is general memory, experienced as an adult, in which there is a natural recall of early events. The other is the memory that is often associated with post traumatic stress syndrome (PTSS). The person suddenly smells, sees and feels as though he or she is actually living the event that took place months or years earlier.Many soldiers who survived horrifying combat experiences have PTSS. This has frequently been discussed in terms of Vietnam veterans who suddenly mentally find themselves in the jungle, hiding from the enemy or assaulting people they see as a threat. The fact that they have not been in Vietnam for decades and that they are experiencing the flashbacks in shopping malls, at home or at work does not change what they are mentally reliving. But PTSS has existed for centuries and has affected men, women and children in the midst of all wars, horrifying natural disasters and other traumatic experiences. This includes physical and sexual abuse when growing up.the PTSS Cheryl was experiencing more and more frequently, in which she found herself seeing, feeling and re-experiencing events from her childhood and adolescence had become overwhelming. She knew she needed to get help.

As I feel less overwhelmed, my fear softens and begins to subside. I feel a flicker of hope, then a rolling wave of fiery rage. My body continues to shake and tremble. It is alternately icy cold and feverishly hot. A burning red fury erupts from deep within my belly: How could that stupid kid hit me in a crosswalk? Wasn’t she paying attention? Damn her!A blast of shrill sirens and flashing red lights block out everything.My belly tightens, and my eyes again reach to find the woman’s kind gaze. We squeeze hands, and the knot in my gut loosens. I hear my shirt ripping. I am startled and again jump to the vantageof an observer hovering above my sprawling body. I watch uniformedstrangers methodically attach electrodes to my chest. The Good Samaritanparamedic reports to someone that my pulse was 170. I hear my shirt ripping even more. I see the emergency team slip a collar onto my neck and then cautiously slide me onto a board. While they strap me down, I hear some garbled radio communication. The paramedics arerequesting a full trauma team. Alarm jolts me. I ask to be taken to thenearest hospital only a mile away, but they tell me that my injuries mayrequire the major trauma center in La Jolla, some thirty miles farther.My heart sinks.