Middle-Range Theory of Self-Care of Chronic Illness: 2025 Update Summary and Key Takeaways

Self-care is one of the most important ideas in chronic illness management. For people living with long-term conditions, health is not only shaped by hospital appointments, prescriptions, investigations or clinical reviews. It is also shaped by the small decisions made every day: taking medicines correctly, noticing symptoms, pacing activity, resting when needed, eating in a supportive way, asking for help early and knowing when something has changed.

The article “An Update to the Middle-Range Theory of Self-Care of Chronic Illness” by Barbara Riegel, Tiny Jaarsma and Anna Strömberg provides an updated explanation of how self-care works for people living with chronic illness. The theory was first published in 2012, then revised in 2019 to integrate symptoms more clearly, and updated again to reflect how self-care is now understood in research and clinical practice. The updated theory continues to centre on three core behaviours: self-care maintenance, self-care monitoring and self-care management. (PubMed)

For a more focused overview of the Middle-Range Theory of Self-Care of Chronic Illness, it is useful to understand the theory as a practical framework for how people preserve health, detect changes and respond to symptoms.

What is the Middle-Range Theory of Self-Care of Chronic Illness?

The Middle-Range Theory of Self-Care of Chronic Illness explains self-care as a process used by people with long-term conditions to maintain health and manage illness. It is called a “middle-range” theory because it is not so broad that it becomes abstract, but not so narrow that it applies to only one disease. It can be used across many chronic illnesses, including heart failure, diabetes, chronic obstructive pulmonary disease, kidney disease, cancer survivorship and multimorbidity.

The theory is especially relevant because chronic illness often requires ongoing decisions outside the clinic. A person may only see a doctor or nurse occasionally, but they live with the condition every day. This means that much of chronic illness care happens at home, at work, during family life and in ordinary routines.

The updated theory helps explain why self-care is not simply “following advice”. It is a complex process involving knowledge, skill, judgement, motivation and reflection.

The three main parts of chronic illness self-care

The updated theory is organised around three central concepts: self-care maintenance, self-care monitoring and self-care management. These are separate ideas, but in real life they overlap.

1. Self-care maintenance

Self-care maintenance refers to the behaviours people use to preserve health, maintain stability and support wellbeing. These are the regular actions that help a person live as well as possible with a chronic condition.

Examples may include taking medication, attending appointments, eating appropriately, staying active within safe limits, avoiding triggers, sleeping well, reducing risk factors, keeping vaccinations up to date and following agreed care plans.

Importantly, the updated theory describes self-care maintenance as more than just preventing deterioration. It includes actions that maintain physical and emotional stability. This is significant because chronic illness affects mood, energy, confidence, relationships and identity, not only the body. (University Medical Center Utrecht)

For example, someone with heart failure might weigh themselves regularly, take medication and limit salt intake. Someone with diabetes might monitor glucose, plan meals and recognise hypoglycaemia. Someone with COPD might use inhalers correctly, pace activity and follow an exacerbation plan. These are all maintenance behaviours because they support day-to-day stability.

2. Self-care monitoring

Self-care monitoring means watching for changes. This includes noticing symptoms, measuring signs, listening to the body and recognising when something is different from normal.

Monitoring can involve formal measurements, such as blood pressure, peak flow, blood glucose, weight or oxygen saturation. It can also involve bodily awareness, such as noticing breathlessness, swelling, fatigue, pain, dizziness, mood changes or reduced appetite.

This part of the theory is crucial because chronic illnesses often fluctuate. A person may feel stable one week and worse the next. Symptoms may come on gradually, and early recognition can make a major difference to outcomes.

The 2019 revision to the theory was important because it integrated symptoms more clearly into self-care maintenance, monitoring and management. The updated article continues this direction by emphasising symptom detection, interpretation and response. (PubMed)

In simple terms, monitoring is the “noticing” stage. It is the point where a person asks: “Is this normal for me, or is something changing?”

3. Self-care management

Self-care management is what happens after a person notices a sign or symptom. It involves interpreting the change, deciding what it means and taking action.

This action may be simple, such as resting, drinking fluids, using an inhaler, adjusting activity or following a written action plan. It may also involve contacting a GP, nurse, pharmacist, specialist team or emergency service.

Self-care management depends heavily on judgement. A person needs to know when a symptom is safe to monitor and when it requires help. This can be difficult, especially when symptoms are vague, frightening, new or similar to previous episodes.

For example, a patient with asthma may follow an asthma action plan when wheeze or breathlessness increases. A patient with heart failure may respond to sudden weight gain or ankle swelling by following agreed clinical advice. A patient with diabetes may treat low blood sugar quickly after recognising symptoms.

Management is therefore not just about action. It also includes interpretation, decision-making and evaluation.

The major update: six requirements for effective self-care

One of the most useful parts of the updated theory is its emphasis on six intrapersonal requirements for self-care. These are:

Experience, knowledge, skills, reflection, decision-making and motivation.

These six requirements explain why self-care is easier for some people than others, and why giving information alone is often not enough. A person might understand their condition but still struggle to manage it because they lack confidence, practical skills, motivation or support.

Experience

Experience matters because people learn self-care over time. Someone newly diagnosed with a chronic illness may not yet know what symptoms feel like, what triggers deterioration or what actions help. Over months or years, many people develop personal expertise.

This does not mean patients should be left to “figure it out” alone. It means healthcare professionals should recognise that self-care develops through practice, feedback and support.

Knowledge

Knowledge is essential. People need to understand their condition, medication, symptoms, warning signs and treatment plan. Without knowledge, it is difficult to make safe decisions.

However, the theory makes clear that knowledge alone is not enough. A person may know what they should do but still face barriers such as low confidence, poor health literacy, fatigue, depression, cost, lack of time or limited support.

Skills

Skills are the practical abilities needed to carry out self-care. These may include using an inhaler, checking blood glucose, monitoring blood pressure, taking medication correctly, using medical equipment, recording symptoms or communicating clearly with healthcare professionals.

Skill development often requires demonstration, practice and correction. For example, inhaler technique is not simply a fact to learn; it is a skill that often needs to be observed and refined.

Reflection

Reflection is one of the most important additions in the updated theory. It means thinking about what happened, what worked, what did not work and what could be done differently next time.

Reflection turns experience into learning. For example, after a symptom flare, a person might consider: What were the early warning signs? Did I delay seeking help? Did the action plan work? What should I do sooner next time?

This reflective element makes self-care more adaptive and personal.

Decision-making

Chronic illness requires constant decision-making. People may need to decide whether to rest or continue activity, whether to adjust a routine, whether symptoms are serious, whether to seek help or whether to follow an action plan.

Decision-making is especially challenging when symptoms are ambiguous. The updated theory recognises that self-care is not a simple checklist; it often involves judgement under uncertainty.

Motivation

Motivation influences whether self-care behaviours are started and maintained. Chronic illness can be exhausting, and motivation may change depending on mood, symptoms, beliefs, support, culture, confidence and previous healthcare experiences.

This is why compassionate support matters. If a patient is not managing self-care well, it should not automatically be seen as non-compliance. It may reflect low confidence, poor support, treatment burden or emotional fatigue.

Why symptoms are so important in the updated theory

Symptoms are central because they connect monitoring and management. A person must first detect a symptom, then interpret it, then decide whether to respond. This may sound simple, but it can be difficult in real life.

Symptoms can be subtle, confusing or easy to normalise. A person with chronic breathlessness may struggle to know when breathlessness is “usual” and when it is a sign of deterioration. Someone with fatigue may not know whether it reflects poor sleep, medication side effects, anaemia, infection, depression or disease progression.

The updated theory helps clinicians think more carefully about symptom work. Patients may need help recognising their baseline, identifying red flags and knowing what action to take.

This is why self-care of chronic illness should be understood as an active process, not a passive instruction to “look after yourself”.

Why the theory matters for healthcare professionals

The updated theory is valuable for nurses, doctors, allied health professionals and researchers because it provides a structured way to identify where self-care is breaking down.

For example, if a patient is not responding to symptoms appropriately, the problem may not be motivation. It may be that they do not recognise symptoms early enough. Or they may recognise symptoms but not know what they mean. Or they may know what they mean but lack confidence to act.

The theory encourages more precise support. Instead of saying “the patient is not engaging”, clinicians can ask:

Does the patient understand the condition?
Can the patient perform the required skills?
Does the patient know what symptoms to monitor?
Can the patient interpret changes?
Does the patient have a clear action plan?
Is the patient motivated and supported?
Has the patient had a chance to reflect on previous experiences?

This approach is more practical and more compassionate.

Why the theory matters for patients and carers

For patients and carers, the updated theory validates the complexity of living with chronic illness. It recognises that self-care is work. It involves routines, decisions, learning, uncertainty and emotional effort.

Carers may also play a major role in self-care. They may help notice symptoms, organise medicines, attend appointments, encourage rest, support lifestyle changes or help decide when to seek help. Although the theory focuses on the person with chronic illness, real-world self-care often happens within families, relationships and communities.

A useful way to understand the theory is this:

Self-care maintenance is what you do to stay stable.
Self-care monitoring is how you notice change.
Self-care management is what you do when change occurs.

Practical examples of the theory in everyday life

A person with COPD may maintain health by using inhalers, avoiding smoke, keeping active and having vaccinations. They monitor by noticing changes in breathlessness, sputum colour, wheeze or activity tolerance. They manage by following an exacerbation plan, using rescue medication if prescribed and seeking help when symptoms worsen.

A person with diabetes may maintain health through medication, food choices, activity and glucose monitoring. They monitor for symptoms of high or low blood sugar. They manage by treating hypoglycaemia, adjusting behaviour according to professional advice and contacting healthcare services when readings or symptoms are concerning.

A person with heart failure may maintain stability through medication, fluid awareness, diet and activity pacing. They monitor weight, swelling and breathlessness. They manage by following their care plan and seeking advice when deterioration is suspected.

These examples show why self-care is not one behaviour. It is a cycle.

What the 2025 update adds

The 2025 update to the Middle-Range Theory of Self-Care of Chronic Illness strengthens the theory by making self-care more practical, dynamic and patient-centred. It keeps the three major concepts of maintenance, monitoring and management, while placing greater emphasis on the human requirements behind effective self-care: experience, knowledge, skills, reflection, decision-making and motivation.

The updated theory is useful because it explains both what people do and what they need in order to do it well.

It also helps healthcare professionals move beyond generic advice. Effective chronic illness support should not only tell patients what to do; it should help them build knowledge, practise skills, recognise symptoms, make decisions, stay motivated and learn from experience.

A small note on everyday self-care

While this theory focuses on chronic illness, its wider message is relevant to daily wellbeing too. Self-care often begins with small repeated cues: pausing, noticing, reflecting and responding. For anyone building gentle routines around rest and emotional wellbeing, a simple item such as a self-care mug gift for mental health can act as a small reminder to slow down, breathe and reset during the day.

Final takeaway

The updated Middle-Range Theory of Self-Care of Chronic Illness shows that self-care is not just about compliance or lifestyle advice. It is a learned, reflective and decision-based process.

People with chronic illness need to maintain health, monitor changes and manage symptoms. To do this well, they need experience, knowledge, skills, reflection, decision-making ability and motivation.

For healthcare professionals, the theory offers a practical framework for patient education, chronic disease management and personalised support. For patients and carers, it recognises the real work involved in living with long-term illness and the importance of being supported, not blamed.

References

Riegel B, Jaarsma T, Strömberg A. An Update to the Middle-Range Theory of Self-Care of Chronic Illness. Advances in Nursing Science. 2025/2026. PubMed record: https://pubmed.ncbi.nlm.nih.gov/40956127/ (PubMed)

Riegel B, Jaarsma T, Strömberg A. A Middle-Range Theory of Self-Care of Chronic Illness. Advances in Nursing Science. 2012;35(3):194–204. DOI: 10.1097/ANS.0b013e318261b1ba. (PubMed)

Riegel B, Jaarsma T, Lee CS, Strömberg A. Integrating Symptoms Into the Middle-Range Theory of Self-Care of Chronic Illness. Advances in Nursing Science. 2019;42(3):206–215. DOI: 10.1097/ANS.0000000000000237. (PubMed)

University Medical Center Utrecht research record for An Update to the Middle-Range Theory of Self-Care of Chronic Illness: https://researchinformation.umcutrecht.nl/en/publications/an-update-to-the-middle-range-theory-of-self-care-of-chronic-illn/ (University Medical Center Utrecht)

There's a version of self-care that gets sold to us in candles and bath salts, and there's a version that actually shows up in your bloodstream. The second one is less photogenic, but it's the one worth understanding.

Positivity, in the scientific sense, has almost nothing to do with forced cheerfulness. Researchers who study it are not talking about pretending everything is fine. They're talking about a set of measurable physiological and cognitive states reduced cortisol reactivity, broadened attention, increased vagal tone that happen to correlate with how we interpret and respond to our own lives. Understanding why that matters requires looking past the self-help shelf and into the lab.

Stress Doesn't Live in Your Head. It Lives in Your Cells

When you're under chronic stress, your body runs on cortisol and adrenaline for longer than it's designed to. That's useful if you're being chased by something with teeth. It's much less useful when the "threat" is a passive-aggressive email or a mounting to-do list, because the stress response doesn't know the difference. It just stays switched on.

Chronic activation of this system has been linked to elevated inflammation, disrupted sleep architecture, and accelerated cellular aging. One of the more striking findings in this area came from research on telomeres the protective caps on the ends of chromosomes that shorten as cells divide. Studies led by health psychologist Elissa Epel found that women under chronic stress had shorter telomeres than their less-stressed peers, and that perception of stress mattered as much as the objective stressor itself. Two people facing the same hardship, with different internal narratives about it, showed different cellular aging markers.

This is the first reason positivity belongs in a serious conversation about self-care: your interpretation of a stressor is doing physiological work, whether you intend it to or not.

The "Broaden-and-Build" Effect

Psychologist Barbara Fredrickson's broaden-and-build theory is one of the more useful frameworks here, precisely because it doesn't oversell positive emotion as a cure-all. Her research suggests that positive emotional states curiosity, contentment, mild joy temporarily widen the scope of what people notice and consider. Under stress or fear, cognition narrows: you fixate on the threat, and problem-solving options shrink with it. Under mild positive states, people show more flexible thinking, better creative problem-solving, and greater willingness to explore unfamiliar options.

The "build" part of the theory is the more interesting half. Fredrickson's work argues that these broadened states, repeated over time, accumulate into durable resources social bonds, coping skills, resilience the way compound interest accumulates. A single good mood doesn't fix anything. A pattern of them changes what you're capable of noticing and doing under pressure later.

This reframes self-care away from single indulgent moments and toward something closer to training: small, repeated inputs that build a more flexible nervous system over time.

Positivity Is Not the Absence of Negative Emotion

This is the part most popular coverage of positive psychology gets wrong, and it's worth being precise about, because getting it wrong can do real harm.

The research does not support suppressing or denying negative emotion. In fact, studies on emotional suppression consistently find the opposite effect: people who try to push down grief, anger, or anxiety tend to experience more physiological arousal, not less, along with worse long-term emotional regulation. Suppression takes cognitive effort, and that effort has a cost.

What the research actually supports is something psychologists call "positivity ratio" awareness — not eliminating difficulty, but ensuring negative experiences aren't the only thing metabolizing your attention. Fredrickson's own estimates about specific ratios of positive-to-negative emotion have been criticized on methodological grounds and shouldn't be taken as a precise formula. But the underlying, better-supported point survives that criticism: emotional life isn't about avoiding the negative, it's about not letting it monopolize the system.

Self-care rooted in real positivity, then, looks less like avoidance and more like capacity-building — creating enough emotional bandwidth that hard feelings can be felt without being the only thing running the show.

Why This Matters for the Body, Not Just the Mood

The health outcomes attached to this aren't small or speculative. Longitudinal research on optimism measured as a general expectation that good things will happen, not blind denial of bad ones has repeatedly found associations with lower rates of cardiovascular disease, better immune markers, and longer lifespan. The Nurses' Health Study, one of the largest long-running cohort studies in existence, found that women with higher optimism scores had a meaningfully lower risk of dying from several major causes of death over the follow-up period, even after adjusting for other health behaviors.

Correlation isn't causation, and researchers in this space are generally careful to say so. But the proposed mechanisms are physiologically plausible and increasingly well-mapped: lower baseline inflammation, healthier cardiovascular reactivity to stress, and critically a higher likelihood of actually engaging in protective health behaviors like exercise, sleep hygiene, and seeking medical care when something feels wrong. Pessimism, by contrast, has been linked to a kind of learned passivity: why take care of a body you expect to fail you anyway?

What This Actually Means for Self-Care

None of this is an argument for toxic positivity the flattening insistence that everything is fine, actually, which research on emotional suppression suggests may be actively counterproductive. It's an argument for something more precise: that cultivating genuine, mild, repeated positive states is a legitimate physiological intervention, not a decorative one.

In practice, the research points toward unglamorous habits: noticing small positive moments rather than letting them pass unregistered, maintaining social connections that produce genuine warmth, and allowing negative emotions their space without letting them become the entire emotional diet. None of it requires denial. All of it requires attention.

Self-care, understood this way, isn't about feeling good in the moment. It's about giving your nervous system enough good input, often enough, that it has the resources to handle the bad input when it inevitably arrives.

Sources referenced: Epel et al., research on telomere length and chronic stress (PNAS); Fredrickson, B.L., broaden-and-build theory of positive emotions; Nurses' Health Study, optimism and mortality risk cohort data; general literature on emotional suppression and physiological arousal.