Post-traumatic stress disorder (PTSD) is a disorder that develops in some people who have experienced a life-threatening event.
Nearly everyone will experience a range of reactions after trauma, yet most people recover from initial symptoms naturally. Those who continue to experience problems may be diagnosed with PTSD. People who have PTSD may feel stressed or frightened, even when they are not in danger.
Certain triggers can set off your PTSD. They bring back strong memories. You may feel like you’re living through it all over again. Triggers can include sights, sounds, smells, or thoughts that remind you of the traumatic event in some way.
Some PTSD triggers are obvious, such as seeing a news report of an assault. Others are less clear.
Symptoms and Diagnosis
Symptoms of PTSD fall into the following four categories. Specific symptoms can vary in severity.
- Intrusion: Intrusive thoughts such as repeated, involuntary memories; distressing dreams; or flashbacks of the traumatic event. Flashbacks may be so vivid that people feel they are re-living the traumatic experience or seeing it before their eyes.
- Avoidance: Avoiding reminders of the traumatic event may include avoiding people, places, activities, objects and situations that may trigger distressing memories. People may try to avoid remembering or thinking about the traumatic event. They may resist talking about what happened or how they feel about it.
- Alterations in cognition and mood: Inability to remember important aspects of the traumatic event, negative thoughts and feelings leading to ongoing and distorted beliefs about oneself or others (e.g., “I am bad,” “No one can be trusted”)
- Alterations in arousal and reactivity: Arousal and reactive symptoms may include being irritable and having angry outbursts; behaving recklessly or in a self-destructive way; being overly watchful of one’s surroundings in a suspecting way; being easily startled; or having problems concentrating or sleeping.
For a person to be diagnosed with PTSD, however, symptoms must last for more than a month and must cause significant distress or problems in the individual’s daily functioning.
Many individuals develop symptoms within three months of the trauma, but symptoms may appear later and often persist for months and sometimes years. PTSD often occurs with other related conditions, such as depression, substance use (addiction), memory problems and other physical and mental health problems.
Why do some people develop PTSD and other people do not?
It is important to remember that not everyone who lives through a dangerous event develops PTSD. In fact, most people will not develop the disorder.
Many factors play a part in whether a person will develop PTSD.
Risk factors make a person more likely to develop PTSD. Other factors, called resilience factors, can help reduce the risk of the disorder.
Some factors that increase risk for PTSD include:
- Living through dangerous events and traumas
- Childhood trauma
- Having little or no social support after the event
- Dealing with extra stress after the event, such as loss of a loved one, pain and injury, or loss of a job or home
- Having a history of mental illness or substance abuse
Some factors that may promote recovery after trauma include:
- Seeking out support from other people, such as friends and family
- Finding a support group after a traumatic event
- Learning to feel good about one’s own actions in the face of danger
- Having a positive coping strategy, or a way of getting through the bad event and learning from it
- Being able to act and respond effectively despite feeling fear
Wrapping up…
Some studies suggest that early intervention with people who had a trauma may reduce some of the symptoms of PTSD or prevent it all together.
Researchers are studying the importance of these and other risk and resilience factors, including genetics and neurobiology. With more research, someday it may be possible to predict who is likely to develop PTSD and to prevent it.
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