The Scientific American article "Why Your Brain Needs Exercise" explores the evolutionary basis for the connection between physical activity and brain health. It highlights that aerobic exercise promotes neurogenesis, particularly in the hippocampus, enhancing memory and cognitive function. The article discusses the role of brain-derived neurotrophic factor (BDNF) in supporting neuron growth and survival, noting that exercise increases BDNF levels. It also examines how physical activity improves executive functions, such as planning and multitasking, by engaging the prefrontal cortex. The authors suggest that our ancestors' physically demanding lifestyles may have shaped this link between movement and brain development.Regular aerobic exercise is significant for brain health, as it supports neuroplasticity and cognitive resilience. Incorporating activities like walking, running, or cycling into one's routine can enhance memory, executive function, and overall mental well-being. Given Scientific American's reputable standing and the evidence presented, these recommendations are credible and align with current scientific understanding.