Over the course of a lifetime, it’s common to be exposed to a traumatic event, whether it is a violent act, a serious injury, a sexual violation, or other shocking event. In response, many will experience traumatic stress—a normal reaction to an abnormal event. People may even experience traumatic stress by just witnessing a highly distressing event or having a close family member or friend experience such an event.
In the days and weeks following such a trauma, it’s common for people to have a flurry of unpredictable emotions and physical symptoms. They include:
- Sadness
- Feeling nervous, jumpy, or on high alert
- Irritability or anger
- Difficulty sleeping
- Relationship problems
- Intrusive thoughts, flashbacks, or nightmares
- Trouble feeling positive emotions
- Avoiding people, places, memories, or thoughts associated with the traumatic event
Usually, these symptoms get better with time. But for some people, more intense symptoms linger or interfere with their daily lives and do not go away on their own. Some people may develop acute stress disorder in which they have extreme symptoms of stress that significantly interfere with daily life, school, work or social functioning in the month after a traumatic event. Others can develop posttraumatic stress disorder (PTSD), with symptoms that interfere with daily life and last for more than a month after the trauma.


