Understanding Post-Traumatic Stress and Beginning to Heal

Post-traumatic stress is not a weakness. It is a normal reaction of the brain to an abnormal event — a serious accident, an assault, a sudden loss, a natural disaster, or even a traumatic medical experience. After such a shock, body and mind remain in a prolonged state of alert, as though the danger were still present. Understanding this mechanism and knowing the paths to recovery is essential to regaining inner peace.

What is post-traumatic stress (PTSD)?

Post-traumatic stress, or post-traumatic stress disorder (PTSD), is a psychological condition that arises after exposure to a traumatic event. Unlike a passing fear, PTSD persists beyond a few weeks and significantly interferes with daily life.

The three pillars of trauma

1. The traumatic event itself An event that threatens physical or psychological integrity: assault, accident, sudden death, rape, war, torture, or natural disaster. The objective intensity matters less than the subjective experience: two people facing the same event will not necessarily develop PTSD. 2. The immediate reaction Panic, dissociation (a sense of detachment from reality), freezing or flight. This reaction is normal and protective in the short term. 3. The persistence of symptoms If traumatic reactions last more than 3 to 4 weeks, they become pathological and call for professional care.

The key symptoms of post-traumatic stress

Re-experiencing the trauma

• Flashbacks: involuntary and intense reliving of the event, as if it were happening again right now
• Recurring nightmares: dreams linked directly or symbolically to the trauma
• Intrusive thoughts: images, sounds or sensations that surface without control
• Physical reactions: cold sweats, trembling, racing heartbeat when reminders of the trauma appear

Avoidance

• Avoiding places, people or activities associated with the trauma
• Refusing to talk about the subject
• Gradual social isolation
• Deliberate suppression of traumatic thoughts (which paradoxically reinforces them)

Hypervigilance and hyperreactivity

• A constant state of alert, as if danger were imminent
• Exaggerated startle responses to sudden noises
• Difficulty concentrating
• Sleep disturbances
• Irritability or outbursts of anger

Cognitive and emotional changes

• Guilt (a sense of having deserved it, or of having been able to prevent it)
• Shame
• Loss of trust in oneself or in others
• Lasting negative beliefs: « The world is dangerous », « I cannot trust anyone »
• Emotional numbing: difficulty feeling pleasure or connection

The post-traumatic stress test can help you assess the intensity of your symptoms confidentially — it does not replace a clinical evaluation, but it offers a useful first indication.

Why does the brain stay « stuck » after a trauma?

The neurobiological model

During a trauma, the amygdala (the brain's emotional centre) goes into overdrive, while the prefrontal cortex (responsible for reasoning and control) shuts down. This reaction was once vital: faced with a predator, you have to react, not reflect.

After the trauma, however, the brain keeps interpreting ordinary situations as threats. A car horn, a smell similar to the one present at the moment of the trauma, or even an ordinary conversation can trigger a disproportionate alarm.

Neuroscientist Bessel van der Kolk, in his book The Body Keeps the Score, shows that traumatic memories are stored differently: not as integrated narratives, but as sensory fragments (images, sounds, bodily sensations) with no temporal context. This is why a flashback feels like a re-experience rather than a memory.

The avoidance loop

Avoidance seems logical: if thinking about the trauma causes distress, better not to think about it. But this strategy paradoxically reinforces the problem. The more you avoid, the more the brain treats the subject as dangerous. This is the vicious circle that cognitive behavioural therapy helps to break.

CBT approaches to healing from post-traumatic stress

1. Gradual exposure (exposure therapy)

Exposure therapy is one of the most scientifically validated interventions for PTSD. It rests on a simple principle: by gradually and safely confronting traumatic memories or situations, the brain relearns that there is no real danger.

How it works:

• Imaginal exposure: recounting the trauma in detail, several times, in a safe environment with a therapist. This repetition allows the brain to process the event as a memory of the past, not a present threat.
• In vivo exposure: gradually facing the situations being avoided (returning to the place of the trauma, driving again after an accident, and so on).

A clinical example: A patient who had survived a car accident developed a phobia of driving. Exposure therapy began with talking about the accident in detail, then watching videos of roads, then sitting in a parked car, then driving on quiet streets, before gradually regaining confidence. Six months later, he was driving normally.

2. Cognitive restructuring

After a trauma, thoughts become rigid and catastrophic. Cognitive restructuring helps identify and change these dysfunctional thought patterns.

Examples of common distortions after a trauma:

• « I should have seen the danger coming » (guilt)
• « I can no longer trust anyone » (overgeneralisation)
• « If I leave my house, something terrible will happen » (magical thinking)
• « I am weak because I am struggling to get over this » (self-devaluation)

Socratic questioning: Rather than directly contradicting these thoughts, the therapist asks questions:

• « What makes you say you should have seen it coming? »
• « Is there someone you do trust, despite what happened? »
• « What would you say to a friend who thought the same thing? »

This approach helps the patient develop their own critical perspective and regain a more balanced view.

3. Managing emotions and bodily sensations

Trauma is inscribed in the body. Techniques for emotional and bodily regulation are essential.

A practical exercise: sensory grounding

When a flashback or a surge of hypervigilance occurs:

Identify 5 things you can see around you (a plant, a lamp, and so on)

4 things you can touch (the texture of your clothes, the temperature of the room)

3 things you can hear (ambient sounds)

2 things you can smell (coffee, fresh air)

1 thing you can taste (mint, water)

This exercise brings attention back to the present and switches off the brain's alarm response.

Breathing as a regulation tool:

Breathing is one of the few autonomic functions we can control voluntarily. Slow, deep breathing (6-8 breaths per minute) activates the parasympathetic system, which calms the body.

The 4-7-8 breathing technique:

• Breathe in slowly for 4 seconds


• Hold your breath for 7 seconds


• Breathe out for 8 seconds


• Repeat 4-5 times

4. Cognitive Processing Therapy (CPT)

CPT combines exposure and cognitive restructuring, placing particular emphasis on the « hot spots » — the aspects of the trauma that remain the most distressing.

The patient writes an account of the trauma, then identifies the thoughts attached to it. The work consists of revisiting those thoughts with the therapist and gradually reshaping them.

Resources and support

As trauma psychology researchers explain, resilience after a trauma is not innate — it is built with support. Accepting help is not a weakness, it is an act of courage.

Key points to remember:

• The trauma is never the victim's fault
• Healing is possible, even long after the event
• Symptoms may feel insurmountable, yet they respond to validated treatments
• The combination of therapy, social support and stress management gives the best results

When should you seek help?

If you or someone close to you has had symptoms of post-traumatic stress for more than 4 weeks, a consultation is recommended. If you are having suicidal thoughts, contact your local emergency services immediately, or find a helpline in your country at findahelpline.com — befrienders.org also lists emotional support services worldwide.

Cognitive behavioural therapy, and in particular exposure and cognitive restructuring, achieves substantial remission rates: around 60-80 % of patients see significant improvement after 12-16 sessions.

For personalised support tailored to your situation, visit psychologieetserenite.com.

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Gildas Garrec, CBT psychotherapist