Examine and briefly describe the effects of regular physical activity on the nervous system?

Regular physical activity has significant positive effects on the nervous system. It enhances neuroplasticity, promoting the brain's ability to adapt and reorganize itself, which can improve learning and memory. Exercise also increases the production of neurotrophic factors, such as BDNF (brain-derived neurotrophic factor), which supports the survival and growth of neurons. Additionally, physical activity can reduce symptoms of anxiety and depression by regulating neurotransmitters and improving overall mood.