Youth brain development
Movement activates biological processes that influence learning, emotional balance and the ability to cope with stress. Modern neuroscience increasingly shows that physical activity is not only important for physical health but also for healthy brain development.
Childhood today looks very different than it did even twenty years ago. Many children spend long hours sitting in classrooms, travelling by car and interacting with screens. While technology and education systems have changed rapidly, the human brain has not evolved nearly as quickly. The developing brain of a child still expects something that modern lifestyles often provide less and less of: regular movement.
Scientific research over the past two decades has demonstrated that physical activity plays a crucial role in cognitive development, emotional wellbeing and stress regulation. When children move their brains trigger a series of biological processes that directly influence mood, learning capacity and resilience.
One of the most important processes involves the hormone cortisol. Cortisol is often called the body’s primary stress hormone. When people experience pressure or anxiety the body releases cortisol to increase alertness and mobilise energy. While this response is useful in short bursts, chronically elevated cortisol levels can negatively affect concentration, mood and sleep.
Physical activity acts as a natural regulator of cortisol. Studies show that regular exercise helps lower baseline cortisol levels and allows the body to recover more effectively from stress. For children and adolescents who face academic pressure, social challenges and emotional changes this regulation can significantly improve their ability to cope with everyday difficulties.
Movement also stimulates the production of a protein known as brain derived neurotrophic factor, often abbreviated as BDNF. Neuroscientists sometimes describe BDNF as fertiliser for the brain because it supports the growth and strengthening of neural connections.
BDNF plays a central role in learning and memory formation. Higher levels of this protein help the brain create new connections between neurons, which improves the ability to store information and adapt to new experiences. Research from institutions such as the University of Illinois and Harvard Medical School shows that children who engage in regular physical activity often demonstrate stronger cognitive performance than less active peers.
The benefits extend beyond academic learning. Increased BDNF levels are also associated with improved emotional regulation and greater resilience to stress. In simple terms movement helps the brain become more flexible and better able to handle challenges.
Physical activity also influences neurotransmitters that regulate mood. Exercise stimulates the release of dopamine, serotonin and endorphins. Dopamine supports motivation and reward processing, serotonin helps stabilise mood and emotional balance, and endorphins create a sense of wellbeing sometimes described as a runner’s high.
For children and adolescents these biochemical effects can significantly influence everyday life. Regular physical activity has been linked to improved concentration in school, better memory retention and more stable emotional states. Studies published in journals such as Pediatrics and the Journal of Adolescent Health show that physically active students often perform better academically and report higher levels of wellbeing.
Movement also contributes to better sleep quality. Sleep plays a critical role in memory consolidation, emotional regulation and brain recovery. Children who engage in regular physical activity often experience deeper and more restorative sleep.
Despite these well documented benefits the World Health Organization reports that more than eighty percent of adolescents worldwide do not meet recommended levels of physical activity. This decline in movement is increasingly recognised as a major public health concern.
Creating environments where children can move regularly is therefore not simply a matter of encouraging sports participation. It is an important investment in brain development and mental wellbeing.
Many youth initiatives and community organisations are beginning to respond to this challenge by creating spaces where young people can move, collaborate and interact socially. Activities that combine movement with creativity and teamwork can amplify the cognitive and emotional benefits of exercise.
The idea behind SPARK is aligned with this growing body of research. The initiative aims to help create environments where young people can move, collaborate and explore creative activities within supportive communities. While the programmes are still evolving, the guiding principle is clear: movement, social connection and creativity together provide powerful foundations for healthy development.
The science increasingly confirms what many parents, teachers and coaches intuitively know. Movement is not only important for physical fitness. It is one of the most powerful tools we have to support healthy brain development.
Supporting opportunities for children to move, play and connect is therefore an investment in the wellbeing of the next generation.
If you would like to help create more spaces where young people can benefit from movement and community you can support the development of SPARK programmes.
Sources
World Health Organization. Global Recommendations on Physical Activity for Health.
Ratey J. Spark: The Revolutionary New Science of Exercise and the Brain. Harvard Medical School.
Hillman C., Erickson K., Kramer A. Be Smart Exercise Your Heart. Nature Reviews Neuroscience.
Journal of Adolescent Health. Physical Activity and Mental Health Among Adolescents.
Pediatrics. Exercise Improves Cognitive Performance in Children.
