Introduction – Module 2 Trauma
Trauma
Trauma is a common human experience, but it is often misunderstood. Trauma is not defined by an event or experience itself, but by how an event or experience overwhelms a person’s ability to cope, process, or feel safe.
This module focuses on understanding how trauma affects the brain and body, recognising common trauma responses, and learning trauma-sensitive ways of communicating that reduce harm.
What trauma is and how it affects the brain and body
Trauma occurs when a person experiences or witnesses something that feels threatening, overwhelming, or inescapable, and their nervous system is unable to settle afterwards.
Trauma can result from:
- Accidents or sudden medical events
- Abuse, neglect, or violence
- Loss, abandonment, or betrayal
- Ongoing stress, discrimination, or instability
- Medical procedures or lack of consent
- Repeated experiences of not being believed or protected
Trauma affects how the brain processes information. The nervous system becomes more focused on detecting threat and less able to access calm reflection on an event or experience. This can continue long after the original event or experience has passed.
Trauma is not a weakness. It is a nervous system adapting to survive.
Trauma responses: fight, flight, freeze, and fawn
When a person feels unsafe, the body may automatically shift into a survival response. These responses are not choices. They happen faster than conscious thought.
Common trauma responses include:
Fight
May show up as anger, defensiveness, or strong reactions. This is the body attempting to regain control or protection.
Flight
May involve avoidance, restlessness, overworking, or needing to leave a situation quickly.
Freeze
May look like shutdown, numbness, dissociation, difficulty speaking, or feeling stuck.
Fawn
May involve people pleasing, appeasing others, or suppressing personal needs to maintain safety.
People may move between these responses depending on the situation. None of them are signs of bad behaviour or intent.
How trauma can affect everyday functioning
Trauma can influence thinking, emotions, relationships, and physical health.
Common impacts may include:
- Heightened sensitivity to stress or perceived threat
- Difficulty trusting others or organisations
- Strong reactions to reminders of past experiences
- Problems with concentration or memory
- Emotional numbness or overwhelm
- Physical symptoms such as pain, fatigue, or gastrointestinal issues
These effects can be confusing for both the person experiencing them and those around them. Understanding trauma helps avoid misinterpretation.
Triggers and why they matter
A trigger is something that reminds the nervous system of a past threat, even if there is no current danger. Triggers are often sensory or relational rather than logical.
Triggers might include:
- Tone of voice or body language
- Feeling dismissed, rushed, or not believed
- Sudden changes or loss of control
- Certain environments, smells, or sounds
- Authority figures or power imbalances
A triggered response is not overreacting or being too sensitive. It reflects a nervous system responding to perceived risk based on past experience.
Trauma sensitive communication practices
Trauma sensitive communication focuses on safety, choice, and respect.
Helpful practices include:
- Speaking calmly and clearly
- Avoiding sudden demands or pressure
- Offering choices where possible
- Explaining what will happen next
- Respecting boundaries and pace
- Believing people’s experiences without interrogation
Small changes in communication can significantly reduce distress and help people remain regulated.
Reducing harm in everyday interactions
You do not need to know someone’s trauma history to respond in a trauma sensitive way. Assuming that people may carry unseen experiences leads to safer interactions for everyone.
Reducing harm may involve:
- Avoiding judgement or disbelief
- Not forcing disclosure
- Being mindful of power dynamics
- Allowing pauses or silence
- Accepting that behaviour may reflect safety needs rather than attitude
Trauma informed responses benefit not only individuals but workplaces, services, and communities as a whole.
Photo credit: Paul Smith OBE – Toucan Diversity’s Ambassador 2026