Exercise and Brain Health: Mechanisms of Neurogenesis and Memory Enhancement

Abstract

Regular physical exercise has been widely recognized as a critical factor in promoting brain health and cognitive function. This article explores the underlying mechanisms through which exercise enhances neurogenesis and improves memory. Emerging evidence suggests that physical activity stimulates the production of brain-derived neurotrophic factor (BDNF), a key protein involved in neuronal survival, growth, and synaptic plasticity. Exercise also promotes neurogenesis, particularly in the hippocampus, a brain region essential for learning and memory formation. Additionally, increased cerebral blood flow and reduced oxidative stress contribute to improved neural efficiency and cognitive performance. Both aerobic and resistance training have been shown to positively influence memory, attention, and executive functions across different age groups. Furthermore, exercise may delay cognitive decline and reduce the risk of neurodegenerative disorders such as Alzheimer’s disease. This review highlights the neurobiological pathways linking physical activity to enhanced brain function and emphasizes the importance of incorporating regular exercise into daily routines for cognitive health. The findings suggest that exercise serves as a non-pharmacological intervention to support brain plasticity and memory enhancement.

Keywords:  Exercise, Brain Health, Neurogenesis, Memory Enhancement, Synaptic Plasticity, Brain-Derived Neurotrophic Factor (BDNF), Cognitive Function, Neuroprotection