Cognitive Reserve: What It Is, How to Build It, and Why Training It With NeuronUP Makes a Difference

Neuropsychologist Vanessa Triviño Burbano explains how to enhance cognitive reserve and neuroplasticity through cognitive stimulation with NeuronUP.

Cognitive reserve is the brain’s ability to tolerate damage or physiological aging by using alternative neural networks. Beyond the lifestyle habits that continually build it, structured cognitive stimulation is the direct way to enhance it in clinical practice. Tools like NeuronUP make it possible to translate scientific evidence into personalized plans that promote neuroplasticity and enable early detection of cognitive decline.

Introduction

Two people may have the same degree of brain atrophy, the same volume of vascular lesions, or a similar burden of beta-amyloid plaques, yet show completely different cognitive performance. One functions normally in daily life; the other develops clear symptoms of dementia. This phenomenon, repeatedly documented in the neuropsychological literature, gives meaning to the concept of cognitive reserve (CR): the brain’s ability to tolerate damage or physiological aging by using alternative neural networks and more efficient cognitive strategies.

Cognitive reserve is not a fixed anatomical structure, but a dynamic construct built throughout life through experiences, habits, and environmental stimuli. At a time when neuroscience has increasingly precise tools for measuring the brain—from functional neuroimaging to computational analysis of large databases—understanding what cognitive reserve is, how it develops, and how it can be actively enhanced has become a priority for both research and clinical practice in neuropsychology and neurorehabilitation.

What Is Cognitive Reserve? The Concept’s Origins and Theoretical Foundations

The term was coined following studies that observed a striking discrepancy between the extent of brain pathology and its clinical expression. The most influential theoretical model remains the one developed by Yaakov Stern, who distinguishes between brain reserve (structural differences, such as brain volume or the number of available neurons and synapses) and cognitive reserve itself (the functional ability to optimize performance by recruiting alternative neural networks or using compensatory cognitive strategies).

An international group of experts, coordinated by Stern himself together with researchers such as Bartrés-Faz, Arenaza-Urquijo, and Kremen, proposed a reference conceptual framework to unify terminology related to cognitive reserve, brain reserve, and brain maintenance, distinguishing these three mechanisms as complementary—though distinct—pathways through which the brain protects itself against decline, in an editorial on cognitive reserve and resilience in aging published in Frontiers in Psychology (Kochhann et al., 2023). This consensus has been key to the shift, over the past decade, from cognitive reserve being a somewhat speculative concept to becoming a subject of study with increasingly well-defined biological, cognitive, and behavioral markers. 

Key Factors That Build Cognitive Reserve

The accumulated evidence indicates that cognitive reserve does not depend on a single factor, but on the combination of multiple variables across the lifespan. The most studied include educational attainment, occupational achievement, participation in intellectually stimulating leisure activities, active social engagement, regular physical activity, and healthy lifestyle habits—a set of variables that recent literature continues to consistently identify as the main determinants of a person’s level of cognitive reserve (Savarimuthu and Ponniah, 2024; Staekenborg et al., 2020; Liu et al., 2024). 

Education and Occupational Complexity

A job that requires decision-making, problem-solving, or managing complex information appears to leave a lasting mark on cognitive reserve. A recent study of older adults in Brazil and Mexico found a significant association between occupational complexity over the course of a person’s career and better cognitive performance in old age (Gonçalves et al., 2025).

Physical Activity

Regular aerobic exercise not only improves cardiovascular health but also appears to have a direct effect on brain structure. A meta-analysis of randomized controlled trials showed that aerobic training produces measurable effects on hippocampal volume in healthy older adults (Balbim et al., 2023), a relevant finding because the hippocampus is one of the structures most vulnerable to aging and Alzheimer’s disease.

Nutrition

The Mediterranean diet continues to accumulate evidence as a protective factor. A meta-analysis published in GeroScience concluded that this dietary pattern is associated with a lower risk of cognitive decline, dementia, and Alzheimer’s disease (Fekete et al., 2025).

Sleep

Long overlooked in classic models of cognitive reserve, sleep has gained prominence in recent years. A study published in BMC Medicine found that the quantity and quality of slow-wave sleep (deep NREM sleep) act as an independent cognitive reserve factor, offsetting the effects of Alzheimer’s disease on memory (Zavecz et al., 2023). This finding reinforces the idea that sleep hygiene should be incorporated as another pillar of cognitive prevention programs.

Modifiable Risk Factors in Combination

Perhaps the work with the greatest media impact in recent years is the Lancet Commission report on dementia, which updated its list of modifiable risk factors. The report concludes that addressing 14 modifiable factors—including physical activity, hearing loss, vision problems, LDL cholesterol control, and exposure to pollution—could prevent or delay nearly half of dementia cases worldwide (Livingston et al., 2024). The clinical takeaway is clear: much of a person’s cognitive reserve is, to a large extent, in their own hands and shaped by the lifestyle choices they make over the years. 

Cognitive Reserve as a Protective Factor Across Conditions

Although the concept originated in connection with aging and Alzheimer’s disease, research in recent years has expanded its application to numerous clinical conditions. A recent systematic review specifically analyzed how cognitive reserve influences both the onset of dementia and response to cognitive stimulation therapy (Rodríguez Mora and Calvario, 2023), confirming that people with greater reserve not only develop the disease later, but also achieve better outcomes when they participate in cognitive intervention programs. 

This protective effect has also been documented in other neurological conditions:

• In multiple sclerosis, for example, a systematic review examined the role of cognitive reserve while considering variables such as physical disability, fatigue, depression, and anxiety, confirming that a higher level of reserve is associated with better cognitive functioning even in the presence of these comorbidities (Stein et al., 2023).
• Similar findings have been reported in the context of substance use disorders and first-episode psychosis, where cognitive reserve acts as a relevant predictor of a patient’s clinical and functional outcomes. 

A recent review focused specifically on strategies for strengthening cognitive reserve to support healthy aging emphasizes that the approach must necessarily be multidomain, combining cognitive stimulation, physical activity, vascular risk factor management, and social participation, rather than focusing on a single, isolated intervention (García González et al., 2025). 

From Theory to Practice: Translating Cognitive Reserve Into Clinical Intervention

Understanding the mechanisms of cognitive reserve has a direct implication for neuropsychology and neurorehabilitation professionals: if reserve can be built through experience, it can also be actively strengthened through intervention. This is where structured cognitive stimulation takes on its full clinical significance.

The rationale is as follows: every time a person takes on a novel, cognitively demanding task—whether learning a language, solving a complex problem, or practicing exercises specifically designed to challenge attention, memory, or executive functions—the brain activates processes of synaptic plasticity and neural network reorganization that are precisely the biological basis of cognitive reserve. That is why a well-designed cognitive stimulation program not only helps maintain a person’s current performance, but also actively helps “strengthen” their cognitive reserve for the future.

NeuronUP’s Role in Building and Maintaining Cognitive Reserve

In this context, digital tools like NeuronUP offer professionals a structured, measurable, and customizable way to work toward this goal. The platform makes it possible to design cognitive stimulation sessions tailored to each person’s level, condition, and goals, targeting functions such as attention, memory, language, executive functions, and visuospatial skills, among others.

Scientific Evidence: Predicting Decline and Brain Plasticity

Accumulated evidence across different clinical settings supports this approach:

• A study conducted over nearly ten years at an occupational center with people experiencing mental health challenges found significant improvements in most service users, particularly in visuospatial skills, attention, language, and executive functions, following ongoing work with the NeuronUP platform.

• In the field of multiple sclerosis, a study found that using digital cognitive stimulation therapies like NeuronUP significantly improves working memory and verbal fluency, with changes accompanied by observable structural modifications in the brain’s gray and white matter—a finding that clearly illustrates the neuroplasticity underlying cognitive reserve. 

NeuronUP Labs‘ own research has advanced this line of work. A study based on real-world data from platform use, recognized internationally by the Journal of Neuropsychology, the official publication of the British Psychological Society, demonstrated that regular use of NeuronUP can predict a person’s risk of cognitive decline one year in advance, by analyzing the predictive value of more than 200 different cognitive stimulation materials, with area-under-the-curve values above 0.89 (Camino-Pontes et al., 2023).

These findings point to the platform’s dual utility: not only as an intervention tool, but also as a source of longitudinal data useful for early detection of decline, one of the areas in which cognitive reserve plays a particularly decisive role. 

Clinical Applications in Acquired Brain Injury, Long COVID, and Parkinson’s Disease

• In populations with acquired brain injury, regular practice with NeuronUP has also been linked to functional improvements that extend beyond cognition alone.
• A recent study on post-COVID syndrome combined neuromodulation using transcranial direct current stimulation with cognitive training on NeuronUP, concluding that this combined approach is feasible, safe, and effective for reducing fatigue and improving cognition in these patients (Oliver-Mas et al., 2025).
• Even in the motor domain, a study of people with mild to moderate Parkinson’s disease showed that home-based cognitive training with NeuronUP, focused on functions such as sustained attention and processing speed, can also improve movement, suggesting that stimulating certain cognitive functions activates neural circuits shared with motor performance. 

Practical Benefits for Neuropsychology Professionals

From a practical standpoint, for professionals addressing cognitive reserve in clinical practice, NeuronUP offers several concrete advantages:

• True personalization: Exercises are adapted to each person’s cognitive profile, age, condition, and optimal difficulty level—a requirement for stimulation to be sufficiently challenging to promote plasticity without becoming frustrating.
• Variety and continuous updates: With a wide and continually expanding range of activities, it is possible to keep stimuli novel, a factor that the literature identifies as key to maximizing cognitive challenge and, in turn, its effect on reserve.
• Objective progress measurement: The platform makes it possible to systematically track each user’s progress, making it easier to adjust the intervention and document outcomes, as reflected in the long-term follow-up studies conducted using its data.
• Broad applicability: From mild cognitive impairment and dementia to acquired brain injury, multiple sclerosis, Parkinson’s disease, post-COVID syndrome, and cognitive stimulation for children, the available evidence supports its use across highly diverse populations.

Ultimately, incorporating a tool like NeuronUP into clinical practice does not replace the other pillars of cognitive reserve —physical activity, sleep, nutrition, or social life—but adds a structured, measurable, evidence-based component that effectively complements these other factors, giving professionals a practical way to translate theoretical knowledge about cognitive reserve into a real, systematic intervention.

Conclusion: The Professional’s Role in Neurorehabilitation

Cognitive reserve has evolved from a theoretical explanation for an intriguing clinical phenomenon into one of the most actionable concepts in contemporary neuropsychology. The scientific evidence accumulated between 2021 and 2026 confirms that it is a multifactorial construct influenced by education, physical activity, nutrition, sleep, social life, and sustained cognitive stimulation, and that it is a proven protective factor against a wide range of neurological and psychiatric conditions.

For neurorehabilitation professionals, this means cognitive reserve is not a fixed attribute that simply has to be taken into account, but a variable that can be actively influenced. Regular, personalized practice with platforms like NeuronUP offers precisely this bridge between theory and clinical practice: structured, tailored, evidence-based training that helps build, maintain, and enhance each person’s cognitive reserve throughout life.

References

• Balbim, G. M., Boa Sorte Silva, N. C., ten Brinke, L., Falck, R. S., & Liu-Ambrose, T. (2023). Aerobic exercise training effects on hippocampal volume in healthy older individuals: A meta-analysis of RCTs. GeroScience, 46(2), 2755-2764. https://doi.org/10.1007/s11357-023-00971-7 
• Camino-Pontes, B., Gonzalez-Lopez, F., Santamaría-Gomez, G., Sutil-Jimenez, A. J., Sastre-Barrios, C., Fernandez de Pierola, I., & Cortés, J. M. (2023). One-year prediction of cognitive decline following cognitive-stimulation from real-world data. Journal of Neuropsychology, 17(2), 302-318. https://doi.org/10.1111/jnp.12307   
• Fekete, M., Varga, P., Ungvari, Z., Fekete, J. T., Buda, A., Szappanos, Á., & Lehoczki, A. (2025). The role of the Mediterranean diet in reducing the risk of cognitive impairment, dementia, and Alzheimer’s disease. GeroScience, 47(3), 3111-3130. https://doi.org/10.1007/s11357-024-01488-3 
• García González, A. L., Díaz-Guerra, D. D., Fernández-Fleites, Z., & Broche, Y. (2025). Strengthening cognitive reserve: evidence-based strategies for healthy aging. Región Científica, 4(2), 2025491. https://doi.org/10.58763/rc2025491
• Gonçalves, N. G., de Medeiros, G. M., Ciciliati, A., Contrera Avila, J., Bertola, L., Ferri, C., Wong, R., & Kimie Suemoto, C. (2025). Association between occupational complexity and cognitive function in older adults from Brazil and Mexico. Neuroscience, 568, 446-453. https://doi.org/10.1016/j.neuroscience.2025.01.051 
• Kochhann, R., Bartrés-Faz, D., Fonseca, R. P., & Stern, Y. (2023). Editorial: Cognitive reserve and resilience in aging. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2022.1120379 
• Oliver-Mas, S., Matias-Guiu, J. A., Delgado-Alonso, C., Gil-Martínez, L., Cuevas, C., Polidura, C., Fernández-Romero, L., Matias-Guiu, A., Gómez-Ruiz, N., Gil-Moreno, M. J., Yus-Fuertes, M., Matias-Guiu, J., & Diez-Cirarda, M. (2025). A randomized comparative feasibility study of neuromodulation and cognitive training for post-COVID fatigue. Scientific Reports, 15, 26818. https://doi.org/10.1038/s41598-025-09772-8 
• Rodríguez Mora, Á., & Calvario, C. (2023). Systematic review of the influence of cognitive reserve on dementia and the efficacy of cognitive stimulation therapy. INFAD, 2(1). https://doi.org/10.17060/ijodaep.2023.n1.v2.2514 

If you enjoyed this article on cognitive reserve: what it is, how to build it, and why training it with NeuronUP makes a difference, you may also be interested in these NeuronUP articles: