What is trauma and why is everyone talking about it?

The word trauma seems to be everywhere.

We hear people talk about the different kinds of trauma they’ve experienced or witnessed: ranging from childhood trauma to intergenerational trauma. We hear about being “triggered”, having a “dysregulated nervous system” and needing to “heal our trauma.”

But with trauma becoming part of everyday language, it is worth pausing and asking:

  • What actually is trauma?

And perhaps even more importantly:

  • Why are we talking about it so much now?

As a psychologist working with trauma, I think it is important that we talk about trauma carefully. Trauma is a powerful framework for understanding human experience, but it should not become a label that explains everything or turns ordinary experiences of distress into pathology.

With trauma becoming more visible we don't want the word trauma to become so broad that it loses its meaning. So, let’s clear up some of the misinformation around trauma and help you understand what it really means.

What is trauma?

Trauma is derived from the Greek word τραῦμᾰ, or traûma, meaning “wound”

It is what happens when we experience something very stressful, frightening, or distressing that is difficult to cope with or out of our control. It could be one incident, or an ongoing event that happens over a long period of time.

Here lies an important different: something difficult happening is not automatically the same as developing psychological trauma.

Most of us will experience an event in our lives that could be considered traumatic. But we won't all be affected the same way. Trauma can happen at any age. It can affect us at any time, including a long time after the event has happened.

Our responses to difficult experiences are shaped by many things: what happened, our age and developmental stage, previous experiences, whether we had support, our relationships, our sense of safety, our resources, and the circumstances surrounding the event.

Trauma is not just about the event itself but the impact it has on the person experiencing it

Trauma isn't always one big event

Often when people hear the word trauma, they may immediately think of war, serious accidents, assault, natural disasters or other life-threatening experiences. These experiences can certainly be traumatic. But trauma can also apply to events where you felt:

  • Under threat

  • Humiliated

  • Rejected

  • Abandoned

  • Invalidated, for example your feelings or views have been dismissed or denied

  • Unsafe

  • Unsupported

  • Trapped

  • Ashamed

  • Powerless

Ways trauma can happen include:

  • One-off or ongoing events

  • Being directly harmed or neglected

  • Witnessing harm to someone else

  • Living in a traumatic atmosphere

  • Being affected by trauma in a family or community, including trauma that has happened before you were born

Trauma can affect the way we experience the present

One of the most important things to understand about trauma is that the past can continue to influence the present. For instance, a person may know they are safe but their body responds as though something dangerous is happening:

  • A particular tone of voice might create an immediate sense of threat

  • Conflict might feel difficult

  • A crowded room can feel overwhelming

Sometimes these responses can seem disproportionate to what is happening in the present. But when we understand them in the context of a person's history, they may make much more sense. The nervous system is designed to detect threat and prepare us to respond. Research into trauma and PTSD has demonstrated changes and alterations across systems involved in stress, fear learning, memory, and regulation.

This is one reason I find the mind–body perspective so important when thinking about trauma.

Trauma is not only something we think about. It can also be something we experience through the body.

The body is part of the story

People experiencing trauma-related difficulties may notice changes in sleep, appetite, muscle tension, heart rate, digestion, energy levels, concentration or their sensitivity to sensory information.

  • They may feel constantly “on edge”.

  • They may feel exhausted.

  • They may experience periods of shutting down or feeling disconnected.

  • They may notice that their body reacts before they have consciously understood what has happened.

This doesn't mean that every physical symptom is caused by trauma. Physical symptoms have many possible explanations and should not automatically be attributed to psychological causes. But it does mean that psychological wellbeing and physical wellbeing cannot always be neatly separated.

Our brains and bodies are constantly communicating.

Trauma can shape relationships too

Humans are relational beings. Our earliest relationships help us learn about safety, trust, boundaries, connection, and what to expect from other people. When relationships are consistently safe and responsive, we can gradually develop an expectation that other people can be trusted, that our needs matter, and that conflict does not necessarily mean abandonment.

However, when relationships are frightening, unpredictable, neglectful or abusive, we may learn very different lessons.

Perhaps:

  • “I need to keep everyone happy.”

  • “I can't rely on anyone.”

  • “I need to stay alert.”

  • “If someone is angry, something bad is going to happen.”

  • “My needs are too much.”

These adaptations can continue into adulthood.

This doesn't mean that someone is destined to repeat their past. It means that our histories can influence the expectations we bring into present relationships.

Psychiatrist Judith Herman's influential book Trauma and Recovery was particularly important in placing psychological trauma within its social and relational context. Herman argued that trauma cannot always be understood separately from the relationships, communities, and social conditions in which it occurs.

So why is everyone talking about trauma now?

There isn't one simple answer.

Part of it is that psychological trauma has been studied increasingly extensively over recent decades.

There has also been greater recognition of the effects of childhood adversity, interpersonal violence, war, displacement, and other overwhelming experiences on mental and physical health.

What is trauma-informed therapy?

Repeated instances of neglect, instability, fear or feeling unsafe can have profound effects, particularly when they occur during childhood. The landmark Adverse Childhood Experiences (ACE) study found that people who experienced more kinds of adversity in childhood tended to have more health and behavioural problems later in life

This research helped change the conversation.

It encouraged us to look beyond individual symptoms and ask:

  • What has this person experienced?

  • What environments have they had to adapt to?

  • What did they have to learn to survive or belong?

Therefore, one of the most compassionate shifts we can make is moving away from asking:

“What's wrong with me?”

and towards:

“What happened to me, and what did I learn to do to cope?”

  • Hyper-vigilance may have developed because being alert was once important.

  • People-pleasing may have helped someone avoid conflict.

  • Emotional detachment may have made overwhelming experiences more bearable.

  • Perfectionism may have created a sense of control in an unpredictable environment.

  • Avoidance may have temporarily reduced overwhelming distress.

Sometimes, these responses can become limiting over time but understanding their original function can help us approach them with compassion rather than shame. This is where therapy comes in. It’s time to learn about yourself and develop new ways to cope.

Healing does not necessarily mean erasing the past or becoming a completely different person.

  • It can mean developing greater choice.

  • Learning to recognise what is happening in your body.

  • Understanding your patterns without judging yourself.

  • Building relationships in which you can experience safety and trust.

  • Developing ways of responding to difficult emotions.

  • Learning when an old protective response is showing up in a new situation.

  • And gradually discovering that you may have more options available to you than you once did.

The goal is to become curious about the individual.

That is where I believe trauma-informed psychological work becomes particularly powerful. Not because trauma explains everything but because understanding the impact of our experiences can help us develop a better relationship with ourselves and to allow for meaningful change to take place.

Remember we are not simply the sum of what has happened to us.

Our histories matter.

Our bodies matter.

Our relationships matter.

And our capacity for change matters too.