MOVEMENT, COGNITION, SENSES, VITALITY & PSYCHOLOGICAL CAPACITY

Intrinsic Capacity: The World Health Organization's New Way of Thinking About Healthy Ageing

Why healthy ageing is increasingly understood through the capacities people can draw on, not diagnosis alone.

 

Two people can share the same birthday and the same diagnosis yet have very different abilities. One may walk quickly but struggle to hear conversation. Another may move slowly but think clearly, manage a household and remain deeply connected to community.

Traditional healthcare measures disease well. It has been less consistent at describing the combined capacities people use to live their lives.

The World Health Organization introduced intrinsic capacity to help fill that gap. The concept asks us to look at the person as a whole set of interacting physical and mental capacities rather than as a collection of diagnoses.

What Is Intrinsic Capacity?

WHO defines intrinsic capacity as the composite of all the physical and mental capacities an individual can draw on. It is a snapshot of the person's underlying capacities at a particular time—not a permanent trait and not a prediction of destiny.

Current WHO indicator work describes six broad domains: locomotor, cognitive, psychological, vision, hearing and vitality capacity. Earlier publications sometimes grouped the sensory domains differently or used five-domain models, so readers may encounter more than one count.

The framework is still being refined. WHO notes that global standards for measuring high intrinsic capacity are evolving. That uncertainty is not a weakness; it is an honest sign that healthy ageing is multidimensional and cannot be captured by one laboratory result.

 

Intrinsic Capacity Is Not Functional Ability

This is the most important distinction in the framework. Intrinsic capacity describes capacities within the person. Functional ability describes the health-related attributes that enable people to be and do what they value.

Functional ability emerges from intrinsic capacity, the environment and their interaction. A person with reduced vision may read independently with glasses, good lighting and larger text. A strong walker may still be unable to reach services when streets are unsafe or transport is inaccessible.

 

For a broader consumer bridge to these ideas, read Health Capacity: Why Healthy Ageing Is About Building What Your Body Can Do.

For the relationship between function and years lived well, continue with Healthspan vs Lifespan: Why Living Better Matters More Than Living Longer.

The Six Domains of Intrinsic Capacity

 

Locomotor Capacity: The Ability to Move Through Life

Locomotor capacity is more than walking speed. It includes muscle strength, power, endurance, balance, coordination and joint function. Each contributes differently. Strength helps lift a load; power helps generate force quickly; balance helps recover from an unexpected shift.

Muscle remains adaptable across life. Progressive resistance training can improve strength, while aerobic activity develops endurance and balance practice improves task-specific control. The appropriate starting point depends on health, experience and access.

Muscle's signalling role is explored in Muscle as an Endocrine Organ: How Myokines Influence Metabolism, Inflammation & Healthy Ageing.

Protein provides amino acids for muscle repair and turnover, but food alone does not replace the movement signal. Capacity is supported when training, energy intake, protein and recovery are aligned.

Cognitive Capacity: Thinking, Learning and Adapting

Cognition is often reduced to memory. In daily life it also includes attention, language, planning, inhibition, orientation and problem-solving. Cooking from a recipe, navigating transport and managing medication all require several cognitive processes at once.

Cognitive performance can change with sleep, mood, hearing, vision, pain, illness, medication and stress. A difficult day is not a diagnosis. Persistent, progressive or concerning changes warrant assessment because some contributors may be treatable or manageable.

Psychological Capacity: The Resources to Engage

Psychological capacity includes mood and emotional resources that help a person engage with life. It is not a demand to remain cheerful. Depression, anxiety, grief, trauma and isolation are real health experiences that can affect appetite, sleep, movement, cognition and participation.

Supportive relationships, meaningful roles, psychological care, safe environments and appropriate treatment can all change how capacity is experienced and expressed.

Vision and Hearing: Capacity That Connects the Person to the World

Vision and hearing influence far more than sensory comfort. They affect balance, communication, learning, social participation and the interpretation of cognitive tests.

An older person who appears disengaged may be unable to hear the question. Someone avoiding stairs may have poor contrast sensitivity rather than weak legs. Glasses, hearing devices, cataract treatment, lighting, captions and quieter environments can transform function.

 

Vitality Capacity: An Emerging Domain

Vitality capacity is the least intuitive and one of the most actively developed domains. WHO work describes it as the physiological factors that contribute to energy and balance among systems. Nutrition, appetite, body composition, metabolism and immune function may all contribute.

There is no single consumer 'vitality test'. Energy is subjective and fatigue has many causes, including sleep loss, stress, under-fuelling, anaemia, illness and medication. Persistent fatigue should be assessed, not marketed as proof of low intrinsic capacity.

For the cellular energy systems behind activity and repair, see Mitochondria Explained: The Complete Guide to Cellular Energy, Metabolism and Whole-Body Health.

The Domains Work as a Network

Intrinsic capacity is not six independent scorecards. A change in one domain can influence several others.

 

The communication among body systems is explored in The Gut-Brain-Immune Connection: How Your Gut Influences Whole-Body Health.

Intrinsic Capacity Is Not the Opposite of Disease

A person can have one or more diagnosed conditions and retain high capacity. Another person may have no major diagnosis yet experience weakness, hearing loss, low mood or reduced endurance.

Disease management remains essential, but a capacity lens asks what the condition means for the person's life and what can be maintained, restored or supported. It moves care from treating isolated organs towards coordinated, person-centred goals.

Healthy ageing therefore does not require being disease-free. It requires opportunities to maintain wellbeing and function with the body and circumstances a person has.

How Is Intrinsic Capacity Different from Frailty?

Frailty generally describes increased vulnerability to stressors because reserve across several systems has declined. Intrinsic capacity takes a more positive, ability-centred view: it profiles capacities that are present, changing or potentially supportable.

The concepts overlap but are not simple opposites. A frailty assessment may identify risk; an intrinsic-capacity approach can help organise what to assess and support across movement, cognition, mood, senses and vitality.

Neither label should replace individual assessment. Capacity varies widely among people of the same age, and chronological age alone is a poor description of function.

Capacity Is Built Across the Life Course

Although WHO developed the framework for healthy ageing, intrinsic capacity reflects biology and experience accumulated throughout life. Childhood growth, education, movement skills, sensory care, nutrition and safe environments shape the capacities available later.

 

For nutrition needs across these stages, read Nutrition Across the Lifespan: From Childhood to Healthy Ageing.

For the decades before retirement, continue with Healthy Ageing Starts Earlier Than You Think: Why Your 30s, 40s and 50s Matter.

Supporting Locomotor and Vitality Capacity

Regular movement provides challenges that help maintain cardiovascular fitness, muscle, bone, balance and metabolic function. A rounded pattern includes daily movement, aerobic activity, strength work and balance or functional practice appropriate to the person.

Australian movement guidance recommends replacing sedentary time with activity and including muscle-strengthening work on at least two days per week for adults where appropriate. Older adults also benefit from multicomponent activity that supports strength, balance and function.

Recovery matters. Capacity is not built by maximum effort every day. Sleep, rest, adequate energy and gradual progression allow adaptation.

Nutrition Supports Every Domain

Nutrition does not create intrinsic capacity through one ingredient. It supplies energy, amino acids, essential fats, vitamins, minerals, water, fibre and plant compounds used across the nervous, muscular, sensory, immune and metabolic systems.

Protein supports muscle and many other tissues. Carbohydrate provides glucose and replenishes glycogen. Healthy fats form membranes and support absorption of fat-soluble vitamins. Iron, B vitamins and other micronutrients contribute to oxygen transport and energy metabolism.

Food must also be practical. Appetite, chewing, swallowing, dexterity, cost, transport, culture and social context affect what is actually eaten. A theoretically perfect diet that cannot be accessed or enjoyed does not support capacity.

For how protein priorities change with growth and ageing, read Protein Throughout Life: Why Your Protein Needs Change With Age.

For the nutrient journey from food to tissues, read The Complete Guide to Healthy Digestion: How Your Body Breaks Down Food, Absorbs Nutrients & Supports Whole-Body Health.

Sleep, Connection and Meaning

Sleep supports attention, memory, mood, immune regulation and physical recovery. Social connection provides stimulation, support, purpose and opportunities to use capacity.

Capacity that is never invited into action can narrow. A community class, shared meal, volunteer role or regular walk may combine movement, cognition, mood and connection more effectively than treating each domain as a separate project.

Where Bone Broth Fits

Broth + Co freeze-dried beef bone broth provides approximately 5 g of naturally occurring protein per serve and a broad amino-acid profile including glycine, proline and hydroxyproline.

Bone broth does not preserve intrinsic capacity on its own. It can offer a convenient savoury source of protein and fluid and provide a base for vegetables, legumes, grains and other protein foods. This may be practical when appetite is lower or warm, softer meals are preferred.

For how it is made and used, read Freeze-Dried Bone Broth Explained | Benefits, Nutrition & Why It Matters.

For complete meal ideas, browse the collection of nourishing recipes.

A Practical Intrinsic-Capacity Check-In

Intrinsic capacity should not become a self-scoring contest. The purpose of noticing change is to act early and appropriately.

 

 

For a practical whole-life framework, continue with The 5 Pillars of Healthy Ageing: Everyday Habits That Support a Longer, Healthier Life.

Frequently Asked Questions

What is intrinsic capacity?

WHO defines it as the composite of all the physical and mental capacities a person can draw on at a point in time.

What are the domains of intrinsic capacity?

Current WHO monitoring work includes locomotor, cognitive, psychological, vision, hearing and vitality capacities.

Is intrinsic capacity the same as independence?

No. Independence and other forms of functional ability depend on intrinsic capacity interacting with the environment and support.

Is intrinsic capacity the opposite of frailty?

No. The concepts overlap but are framed differently. Frailty focuses on vulnerability, while intrinsic capacity profiles abilities and potential areas for support.

Can intrinsic capacity improve?

Some capacities can improve through training, treatment, rehabilitation, nutrition, sensory support and recovery. Results depend on the person and circumstances.

Does having a chronic condition mean low capacity?

Not necessarily. Disease status and capacity are related but not interchangeable.

Why does nutrition matter?

Nutrition supplies energy and materials used by muscle, brain, senses, immunity and metabolism, but it works with movement, sleep, care and environment.

Does bone broth support intrinsic capacity?

No single food preserves capacity. Bone broth can contribute protein and fluid within a varied, nourishing dietary pattern.

The Bottom Line

Intrinsic capacity changes the healthy-ageing question from 'Which diseases does this person have?' to 'Which physical and mental capacities can this person draw on, and where might support make a difference?'

That shift does not make disease unimportant. It makes the person more visible.

Movement, cognition, mood, vision, hearing and vitality interact throughout life. Nutrition, exercise, sleep, healthcare and rehabilitation can support them, while environments determine how readily capacity becomes participation. Healthy ageing is not simply adding years or avoiding diagnoses. It is protecting both the ability and the opportunity to live a life that matters.

Scientific References

World Health Organization. World report on ageing and health. Geneva: WHO; 2015.

World Health Organization. Decade of Healthy Ageing: Baseline Report. Geneva: WHO; 2020.

World Health Organization. Integrated care for older people (ICOPE): guidance for person-centred assessment and pathways in primary care. Geneva: WHO; 2019.

World Health Organization. Percentage of older people with high intrinsic capacity: indicator metadata. WHO Global Health Observatory.

Belloni G, Cesari M. Frailty and intrinsic capacity: two distinct but related constructs. Frontiers in Medicine. 2019;6:133.

Romero-Ortuno R et al. WHO working definition of vitality capacity for healthy longevity monitoring. Lancet Healthy Longevity. 2022;3:e789-e796.