PTSD and Everyday Life: Understanding the Impact of Trauma Beyond the Symptoms

New research explores how we can better understand the ways post-traumatic stress affects work, relationships and everyday functioning.

When we talk about post-traumatic stress disorder (PTSD), we often focus on the symptoms: intrusive memories, nightmares, hypervigilance, avoidance and the persistent sense that danger may still be present. These symptoms matter enormously but are only part of the picture.

What happens when someone can recognise their symptoms, even understand why they are experiencing them, but still struggles to get through an ordinary working day?
What does it mean when relationships become difficult to sustain, familiar situations feel overwhelming, or the everyday demands of life begin to feel disproportionately exhausting?
For many people affected by trauma, these are the difficulties that shape their lives long after the traumatic event itself has passed.

A recent research update from the US National Center for PTSD has drawn attention to an important question: how well do we understand the relationship between PTSD symptoms and their impact on everyday functioning?

It is a question worth exploring, not only for clinicians and researchers, but also for anyone trying to make sense of their own experiences of trauma.

PTSD is about more than symptoms

PTSD is commonly understood through its characteristic symptoms. These can include re-experiencing traumatic events, avoiding reminders of what happened, changes in thoughts and mood, and alterations in psychological arousal and reactivity.

However, knowing which symptoms someone experiences does not necessarily tell us how those symptoms affect their daily life.

Two people may experience similar symptoms but have very different experiences of functioning. One might find it difficult to remain in employment, while another may continue working but struggle with exhaustion, concentration or relationships. Someone else might appear to manage their responsibilities while experiencing considerable distress privately.

This distinction really matters.

Being able to attend work, maintain a household or fulfil caring responsibilities does not necessarily mean that someone is functioning comfortably or without significant cost to their wellbeing.

Equally, difficulties with everyday functioning do not automatically tell us the full story of what is happening. Financial pressures, physical health, neurodivergence, social circumstances and other mental health difficulties may also contribute.

A true trauma-informed understanding needs to hold these complexities together rather than assuming that symptoms and functioning are interchangeable.

What is the PRFI-5?

The Posttraumatic Stress Related Functioning Inventory (PRFI-5) is a clinical assessment measure designed to explore how PTSD symptoms affect a person’s functioning.

The original Posttraumatic Stress Related Functioning Inventory was developed to address a gap in existing measures. Although many assessment tools explore symptoms or general functioning, fewer explicitly connect the two.

The revised measure has been updated to reflect the diagnostic framework for PTSD in the Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5).

The PRFI-5 asks people to rate the impact of their PTSD symptoms across three broad areas:

• Work and education: how symptoms affect employment, studying and related responsibilities.
• Relationships: how symptoms affect interpersonal relationships and connection with others.
• Lifestyle: how symptoms affect broader aspects of everyday life, including areas such as housing and legal matters.

The important distinction is that the measure is not simply asking whether someone experiences a particular symptom. It seeks to understand how that symptom, or group of symptoms, affects their ability to live their life. This provides a potentially more nuanced picture of the relationship between trauma and everyday difficulties.

What did the research find?

The October 2026 issue of CTU-Online, published by the National Center for PTSD, summarised research examining the psychometric properties of the revised measure.

The study, by McCaslin and colleagues (2026), analysed baseline data from 450 veterans with PTSD who were participating in a randomised controlled trial of employment support. 18% of the sample were women. The researchers examined whether the PRFI-5 demonstrated appropriate reliability and whether its results related to other measures in ways that would be expected, with encouraging findings.

The measure demonstrated adequate reliability across its subscales and total scores. Its results also related as expected to factors including PTSD symptom severity and quality of life. These findings suggest that the PRFI-5 may help clinicians and researchers develop a clearer understanding of how PTSD symptoms are associated with difficulties in everyday functioning.

At 33 questions, it is longer than some other functioning clinical measures. Nevertheless, the researchers concluded that it performed well in this large sample and may offer useful information for treatment planning.

It is important, however, to interpret the findings proportionately. This was a validation study using data from a particular group of veterans, rather than evidence that the measure is equally suitable for every population or that using it directly improves treatment outcomes. Further research can help clarify its usefulness in different clinical settings.

Source: McCaslin et al. (2026), “Examination of psychometric properties of the Posttraumatic Stress Related Functioning Inventory, Revised (PRFI-5) in veterans.”

Why does functioning matter so much?

From a clinician’s perspective, I think the distinction between experiencing symptoms and living with their consequences is particularly important.
Trauma can affect much more than how a person feels when they remember what happened. It can influence their sense of safety, their relationships, their capacity to concentrate, their tolerance of stress and the amount of energy required to navigate ordinary situations.

Consider someone who experiences hypervigilance.

At a symptom level, we might understand this as being persistently alert to possible danger. But what might that look like in everyday life?

Perhaps the person finds it difficult to concentrate during meetings because part of their attention is always monitoring the environment. They may avoid public transport, struggle to relax in social situations or feel exhausted after spending time somewhere that others experience as ‘normal’.
They may finish an ordinary working day feeling as though they have completed something far more demanding than their colleagues might realise.

Consider someone who experiences avoidance.

Avoidance is often discussed in relation to reminders of trauma, but its consequences can extend into many areas of life. Someone may withdraw from friendships, postpone appointments, avoid particular places or find it increasingly difficult to participate in activities that once mattered to them.
Over time, these adaptations can affect relationships, opportunities and confidence.

The difficulty is not necessarily that the person does not want to engage with life. It may be that engagement has come to feel unsafe, overwhelming or simply too costly in terms of the emotional and physical resources required.

These examples illustrate why understanding functioning can add something important to our understanding of PTSD.

When coping hides the cost

One of the challenges in understanding trauma is that outward functioning can be misleading.

Some people continue to work, care for their families, maintain relationships and meet their responsibilities despite considerable internal distress.
They may have developed ways of managing their symptoms that allow them to keep going. They may be highly organised, work exceptionally hard or structure their lives around avoiding situations they find difficult.

From the outside, they might appear to be coping well. Yet the effort required to maintain that appearance may be substantial.

Perhaps they need hours to recover after social contact. Perhaps they spend considerable time anticipating potential difficulties, rehearsing conversations or checking that everything is safe. Perhaps they can manage their responsibilities only by sacrificing rest, spontaneity or activities that would otherwise bring pleasure.

This does not mean that outward functioning should be dismissed or that everyone who works hard or feels exhausted has PTSD. Rather, it reminds us that visible achievement and subjective wellbeing are not the same thing.

When assessing trauma-related difficulties, it can be helpful to explore not only what someone manages to do, but also what it takes for them to do it.

What does functioning cost them?
What have they stopped doing because it feels too difficult?
What parts of their lives have become organised around preventing distress?
What might they be able to do if they felt safer, less overwhelmed or less preoccupied with the possibility of danger?

These questions can open up a more compassionate and clinically meaningful conversation.

The impact on relationships

Relationships are another area in which the effects of trauma can be particularly complex.

For some people, trauma can make trust really difficult. Others may become highly sensitive to changes in tone, facial expression or perceived rejection. Some may withdraw when they feel overwhelmed, while others may experience a strong need for reassurance or find separation especially difficult.

These responses do not occur in everyone with PTSD, and they should not be assumed to have a single explanation. Nevertheless, they illustrate how trauma-related difficulties can extend beyond an individual’s internal experience and influence their connections with other people.

A person may deeply value their relationships while finding intimacy, conflict or uncertainty really difficult to tolerate.
They may want to feel close to someone but become distressed when closeness brings a sense of vulnerability.
They may understand intellectually that a present-day relationship is different from a past experience, yet still find that their emotional or bodily responses do not readily follow that understanding.

When we look only at the symptom itself, we can miss the relational consequences.
When we explore functioning, we can begin to understand how these experiences shape a person’s life and what support might be helpful.

This is also why a compassionate, non-judgemental approach matters. Behaviours that appear confusing or disproportionate from the outside may make more sense when understood in the context of what the person has experienced and how they have learnt to protect themselves.

Understanding does not mean assuming that every response is helpful or that difficulties cannot change. It means beginning with curiosity rather than blame.

What does this mean for therapy?

The PRFI-5 is an assessment instrument, not a therapy process in itself. Its potential value lies in the additional information it may offer when understanding a person’s difficulties and considering their treatment needs.
For therapists, the broader principle is worth considering regardless of whether this particular measure is used.
A comprehensive understanding of PTSD needs to explore both the symptoms someone experiences and the ways those symptoms affect their life.

It may be useful to explore these questions to help make therapy more relevant to the individual’s circumstances and priorities.

• What has become more difficult since the traumatic experience/s?
• Are there activities, places or relationships the person now avoids?
• How are sleep, concentration and emotional regulation affecting everyday responsibilities?
• How much effort does it take to maintain their current level of functioning?
• What matters to the person that they would like to be able to do more freely?
• Which difficulties feel most important to address first?

They may also help establish a broader picture of change over time. Progress is not always reflected solely in a reduction in symptom scores. A person may begin reconnecting with friends, feel more able to travel independently, return to an activity they had abandoned, rely less on ultimately destructive coping strategies or find that everyday decisions require less effort.

Such changes do not replace careful assessment of PTSD symptoms, but they can be meaningful indicators of improvement in a person’s lived experience.

Equally, progress is rarely linear. Someone may experience fewer intrusive memories while continuing to struggle with relationships or work. Another person may actually become more aware of their distress as they begin to feel safe enough to acknowledge experiences they had previously pushed aside.

A nuanced approach allows room for these different patterns without reducing recovery to a single score or a simple measure of success or failure.

A trauma-informed perspective: understanding adaptation, not just difficulty

There is another aspect of this conversation that I think deserves attention.

Many responses associated with trauma can be understood, at least in part, as attempts to manage danger or reduce the likelihood of being hurt again.

Hypervigilance may reflect a persistent need to anticipate threat. Avoidance may offer temporary relief from overwhelming reminders. Emotional withdrawal may help someone manage experiences that feel difficult to contain.

These responses can become restrictive, particularly when a person’s circumstances have changed but their sense of danger remains difficult to shift. Nevertheless, it can be helpful to understand their protective function rather than viewing them simply as deficits or failures.

A trauma-informed approach asks not only, “What is this person struggling with?” but also, “What might this response be doing for them, and what has made it necessary?”

This is not about assuming that every behaviour is caused by trauma or that every protective strategy remains helpful. It is about placing difficulties within a wider context of experience, meaning and adaptation.

For me, this perspective is important because it helps preserve the person’s dignity. It allows us to acknowledge the real consequences of PTSD without defining someone entirely by those consequences.

It also supports a more individualised understanding of recovery. The aim is not simply to make someone appear more functional to the outside world. It is to help them develop greater freedom, choice and capacity to participate in a life that matters to them.

Moving beyond the question, “How severe are the symptoms?”

Symptom measures have an important role in PTSD assessment and treatment.
They can help clinicians understand symptom patterns, monitor change, plan treatment and evaluate outcomes.
But symptom severity is only one part of the clinical picture.
A fuller understanding also asks how the person is living, what they are finding difficult, which resources they can draw upon and what they would like to change.

The PRFI-5 is a promising development because it explicitly connects PTSD symptom clusters with functioning across several areas of life. Its findings offer a useful reminder that assessment can become more informative when it explores not only the presence of symptoms, but also their perceived impact.

The study does not establish that this measure should be used in every setting, nor does it tell us everything we need to know about an individual’s circumstances. Its findings are an encouraging step in developing more nuanced ways of understanding trauma-related functioning.

For clinicians, it invites reflection on how we assess difficulties and evaluate progress.
For people living with PTSD, it offers a way of thinking about their experiences that may feel more recognisable than a list of symptoms alone.

And for all of us seeking to understand the effects of trauma, it reinforces something important: the impact of trauma cannot always be understood by looking at what happens inside a person. We also need to consider how those experiences shape their relationships, choices, opportunities and everyday lives.

Perhaps one of the most useful questions we can ask is not simply, “What symptoms are you experiencing?” but, “How is this affecting your life, and what would you like life to look like instead?”

That question moves us towards a more person-centred understanding of trauma: one that recognises distress and difficulty while keeping sight of the person beyond the symptoms.

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References and further reading

McCaslin, S. E., Mackintosh, M.-A., Wolfe, W. R., Neylan, T. C., Maguen, S., Mueller, L., et al. (2026). Examination of psychometric properties of the Posttraumatic Stress Related Functioning Inventory, Revised (PRFI-5) in veterans. Psychological Trauma: Theory, Research, Practice, and Policy. Advance online publication.

• Read the research paper (PDF)
• Read the October 2026 CTU-Online research summary
  
• If you would like to explore the research behind the Posttraumatic Stress Related Functioning Inventory, Revised (PRFI-5), you can read the 2026 validation study on PubMed.
• For background on the development of the original measure, the 2016 research paper is available as a free PDF.
• If you are looking for a related assessment tool to explore how PTSD affects everyday functioning, the US National Center for PTSD also provides information about the Inventory of Psychosocial Functioning (IPF), including downloadable versions. Please note that the IPF is a separate measure, not the PRFI-5.
• I have not been able to locate a publicly downloadable copy of the PRFI-5 questionnaire itself at the time of writing.

Clinical note: Assessment measures can offer a helpful starting point for exploring the impact of trauma, but they are best understood alongside a broader clinical assessment and the individual’s own account of their experiences. Scores should not be interpreted in isolation or used as a substitute for clinical judgement, professional guidance or an understanding of the person’s wider circumstances.

This article is intended for information and reflection. It is not a diagnostic tool or a substitute for individual clinical assessment.

Lisa Harris
Psychotherapy | Supervision | Consultancy
Qualified Traumatologist
lisaharris.uk