Exploring how exercise influences neuroplasticity, memory, attention, executive function, mental health, and neurological resilience throughout life.
Introduction: Why Movement Matters to the Brain
When someone begins an exercise program, the most obvious changes often involve the body.
Walking becomes easier. Muscles become stronger. Endurance improves. Daily tasks require less effort.
However, physical activity also influences the nervous system.
Movement requires the brain to integrate sensory information, coordinate muscular activity, regulate physiological demands, and adapt to changing conditions.
With repeated exercise, these processes may contribute to changes in neurological function.
Research has also identified associations between regular physical activity and cognitive performance, including attention, memory, and executive function.
In 2008, Hillman, Erickson, and Kramer published Be Smart, Exercise Your Heart: Exercise Effects on Brain and Cognition in Nature Reviews Neuroscience.
Their influential review examined evidence suggesting that aerobic exercise could influence cognitive function across the lifespan.
Since then, scientific research has expanded considerably.
Investigators have used neuroimaging, cognitive testing, randomized interventions, and molecular techniques to examine how movement affects the brain.
Additional studies have explored muscle–brain communication and the possible roles of exercise-related signaling molecules.
The central lesson is increasingly clear.
Movement is not simply something the brain commands the body to perform. It is also an experience through which the nervous system is challenged, engaged, and potentially changed.
The Brain and Body Form an Integrated System
The nervous system coordinates movement through interactions among cortical, subcortical, brainstem, spinal, and peripheral pathways.
Motor planning involves the selection and organization of actions.
Sensory systems provide information about body position, movement, and the surrounding environment.
The cerebellum contributes to coordination, prediction, and error-based learning.
Basal ganglia circuits participate in action selection and other aspects of motor control.
The spinal cord and peripheral nervous system coordinate muscular activation and sensory feedback.
These systems operate continuously during movement.
However, exercise also challenges cardiovascular, respiratory, metabolic, and autonomic regulation.
The brain participates in coordinating these responses.
Physical activity therefore creates a complex physiological and sensorimotor experience.
Exercise and Neuroplasticity
Neuroplasticity refers to the capacity of the nervous system to change in response to development, learning, experience, or injury.
These changes can involve synaptic activity, network organization, structural remodeling, and other processes.
Learning a new movement skill requires repeated interaction among sensory feedback, prediction, attention, and motor execution.
As the skill develops, neural activity may become more efficient or better coordinated for the task.
However, not every form of exercise produces identical neural adaptations.
Practicing a complex motor skill differs from performing repetitive endurance exercise.
Both can be beneficial, but they challenge the nervous system in different ways.
A comprehensive movement program may therefore incorporate physical conditioning alongside coordination, balance, and task-specific learning when appropriate.
The Hippocampus and Memory
The hippocampus is important for aspects of learning, memory, and spatial processing.
Animal research has demonstrated that physical activity can influence hippocampal neuroplasticity.
Some studies have identified changes involving neurotrophic signaling, synaptic function, and adult neurogenesis.
Human research has also investigated relationships between aerobic exercise, hippocampal structure, and memory performance.
However, these findings require careful interpretation.
A change in hippocampal volume does not automatically establish improved memory.
Likewise, circulating neurotrophic biomarkers do not provide a direct measurement of hippocampal plasticity.
The clinical question is whether exercise produces meaningful improvements in cognitive functioning.
This requires appropriately designed studies using validated outcomes.
Exercise and Executive Function
Executive functions include cognitive processes involved in planning, working memory, inhibition, and flexible regulation of behavior.
These abilities support everyday functioning.
For example, they help individuals manage competing demands, shift between tasks, and regulate responses.
Hillman and colleagues reviewed research suggesting that physical activity may influence certain aspects of executive function.
Subsequent investigations have expanded this evidence.
In 2025, a large umbrella review published in the British Journal of Sports Medicine synthesized 133 systematic reviews covering 2,724 randomized controlled trials and more than 258,000 participants.
The investigators reported beneficial effects of exercise on general cognition, memory, and executive function.
However, effect sizes varied.
Results also depended on population, intervention type, and methodological quality.
These findings support physical activity as a component of cognitive health, but they do not imply that exercise produces identical cognitive improvements in every individual.
Childhood Physical Activity and Learning
Physical activity is especially relevant during childhood because motor, cognitive, and social development occur simultaneously.
Movement provides opportunities for exploration, coordination, skill acquisition, and interaction with the environment.
Sports and physical games can involve attention, decision-making, spatial processing, and cooperation.
However, these relationships should not be interpreted as evidence that every exercise program improves academic achievement.
Some interventions may benefit particular cognitive domains without changing school performance.
Others may primarily improve fitness, motor competence, or psychological well-being.
The most defensible approach is to recognize that physical activity has intrinsic health and developmental value.
Academic performance should not be the sole justification for providing children with opportunities to move.
Exercise and Attention
Attention involves several interacting neurological processes.
These include maintaining focus, selecting relevant information, and shifting attention when circumstances change.
Exercise may influence attention through changes in arousal, neural activity, sleep, mood, and other factors.
Some research has examined whether brief exercise sessions improve attention immediately afterward.
Other studies investigate changes following repeated training.
However, findings are heterogeneous.
The type of exercise, duration, intensity, baseline fitness, and cognitive task can influence outcomes.
Exercise should therefore be viewed as a potentially useful contributor to attention and overall health rather than a universal treatment for attentional difficulties.
ADHD and Physical Activity
Attention-deficit/hyperactivity disorder is a neurodevelopmental condition involving persistent patterns of inattention, hyperactivity, impulsivity, or combinations of these symptoms.
Physical activity can be valuable for children and adults with ADHD.
It may provide opportunities to improve fitness, motor skills, emotional well-being, and aspects of executive function.
Some clinical studies have reported improvements in selected ADHD-related outcomes following exercise interventions.
However, research quality and intervention protocols vary.
Exercise is not a replacement for evidence-based ADHD treatment when medication, psychological intervention, or other clinical services are indicated.
A personalized approach should identify the individual's needs and incorporate activities they can safely and consistently participate in.
Exercise, Depression, and Anxiety
Physical activity can contribute to psychological well-being.
Potential mechanisms include improved sleep, changes in physiological arousal, greater social engagement, and behavioral experiences associated with competence and achievement.
Exercise may also influence neurobiological pathways involved in mood regulation.
A 2024 systematic review and network meta-analysis published in The BMJ evaluated randomized trials of exercise for depression.
The investigators found that several exercise modalities were associated with reductions in depressive symptoms.
However, study quality varied, and many trials had methodological limitations.
Exercise may be an effective treatment option or adjunct for selected patients, depending on severity and preference.
However, severe psychiatric illness may require medication, psychotherapy, or specialist care.
The goal is to integrate exercise appropriately rather than promise that movement alone will resolve every psychological condition.
Muscle–Brain Signaling
Exercise influences the nervous system through more than direct neural activity.
Skeletal muscle and other tissues release signaling molecules during physical activity.
These include certain myokines, metabolites, and other factors collectively described as exerkines.
Pedersen's 2019 review examined possible pathways connecting muscular activity to neural function.
Relevant research includes studies of cathepsin B, FNDC5-related signaling, BDNF, and kynurenine metabolism.
However, many mechanistic findings come from animal experiments.
The exact contribution of these pathways to human cognitive improvements remains uncertain.
The strongest clinical justification for recommending exercise comes from demonstrated health and functional outcomes, not speculation about individual molecular mediators.
Exercise and Cognitive Aging
Age-related changes in cognition are influenced by multiple processes.
Vascular health, metabolic disease, neurological conditions, sensory impairment, sleep, and other factors may contribute.
Physical activity can support several systems relevant to cognitive health.
However, it is important to distinguish improving cognitive performance from preventing dementia.
Evidence for particular intervention effects varies by outcome.
In 2025, the US POINTER randomized clinical trial, published in JAMA, examined multidomain lifestyle interventions in 2,111 older adults at risk of cognitive decline.
The structured intervention involved exercise, nutritional guidance, cognitive activities, social engagement, and cardiovascular monitoring.
Participants receiving the structured intervention demonstrated modestly greater improvement in global cognition over two years than those receiving a self-guided intervention.
However, the study does not establish how much of the benefit was attributable specifically to exercise.
It also did not demonstrate that the program prevented dementia.
The findings support comprehensive lifestyle interventions while illustrating the importance of distinguishing multidomain effects from exercise-specific effects.
Motor Learning and Functional Neurological Rehabilitation
Movement-based rehabilitation differs from general exercise programming.
A patient recovering from neurological injury may need to relearn specific motor tasks.
Training may involve repeated practice, sensory feedback, balance challenges, coordination, and progressive task demands.
However, meaningful rehabilitation should be guided by the patient's diagnosis and functional goals.
For example, gait training may be appropriate when walking is impaired.
Vestibular rehabilitation may be indicated for particular vestibular disorders.
Strength training may improve function when muscular weakness contributes to disability.
These interventions should not be treated as interchangeable.
Likewise, there is no evidence that stimulating an arbitrary movement pattern automatically reorganizes the nervous system in a clinically beneficial way.
Effective neurological rehabilitation depends on appropriate assessment, task specificity, dosage, progression, and relevant outcome measures.
The Relationship Between Physical Fitness and Brain Health
Cardiorespiratory fitness reflects the integrated function of cardiovascular, pulmonary, and muscular systems.
Higher fitness is associated with favorable health outcomes.
However, fitness is not equivalent to neurological health.
An individual may have excellent aerobic capacity while experiencing a neurological or psychiatric condition.
Similarly, someone with physical limitations may maintain meaningful cognitive abilities despite reduced exercise capacity.
The relationship between movement and brain health should therefore be understood as contributory rather than determinative.
Exercise can support physiological systems relevant to neural function, but it does not eliminate every neurological risk.
How This Research Informs Move Well
Our Move Well philosophy recognizes that movement involves integrated neurological, muscular, sensory, and physiological processes.
Our approach emphasizes individualized exercise prescription informed by functional assessment.
For individuals pursuing wellness, programs may focus on cardiorespiratory conditioning, strength, mobility, and sustainable activity habits.
For those with neurological or movement-related limitations, assessment may identify specific functional goals requiring targeted rehabilitation.
For athletes, programming may involve coordination, motor learning, strength, and performance development.
However, the relationship between exercise and cognition should not be overstated.
We do not assume that improved balance, movement screening scores, or muscular strength automatically produces improvements in unrelated cognitive abilities.
Instead, outcomes should be evaluated according to the specific functions being targeted.
Conclusion: Exercise Challenges the Brain as Well as the Body
The relationship between movement and neurological health is far more complex than a simple mind–body connection.
Physical activity challenges neural circuits involved in motor control, sensory integration, attention, and physiological regulation.
Repeated exercise can contribute to changes in brain function and broader health.
Research also supports beneficial effects on certain cognitive outcomes.
However, different exercise modes, populations, and clinical conditions produce different responses.
A universal exercise prescription cannot adequately address every neurological goal.
The most meaningful application of exercise neuroscience is not the promise that movement can solve every cognitive problem. It is the recognition that appropriately prescribed physical activity can support brain health while improving the physical capacities that make participation in life possible.
Research References
Hillman CH, Erickson KI, Kramer AF. Be smart, exercise your heart: exercise effects on brain and cognition. Nature Reviews Neuroscience. 2008;9:58–65. https://doi.org/10.1038/nrn2298
Pedersen BK. Physical activity and muscle–brain crosstalk. Nature Reviews Endocrinology. 2019;15:383–392. https://doi.org/10.1038/s41574-019-0174-x
Chow LS, Gerszten RE, Taylor JM, et al. Exerkines in health, resilience and disease. Nature Reviews Endocrinology. 2022;18:273–289. https://doi.org/10.1038/s41574-022-00641-2
Effectiveness of exercise for improving cognition, memory and executive function: a systematic umbrella review and meta-meta-analysis. British Journal of Sports Medicine. 2025. https://doi.org/10.1136/bjsports-2024-108589
Baker LD, et al. Structured vs self-guided multidomain lifestyle interventions for global cognitive function: the US POINTER randomized clinical trial. JAMA. 2025;334:681–691. https://doi.org/10.1001/jama.2025.12923
Exercise for depression: a systematic review and network meta-analysis of randomised controlled trials. BMJ. 2024;384. https://doi.org/10.1136/bmj-2023-075847