Physical activity positively affects cognitive function in older adults by enhancing blood flow and encouraging the growth of new brain cells. Regular exercise has been linked to improved memory, attention, and overall cognitive performance. It can reduce the risk of cognitive decline and dementia, promoting mental agility and emotional well-being. Additionally, physical activity fosters social engagement and reduces feelings of isolation, both of which further contribute to enhanced cognitive health. Consistent exercise, therefore, plays a crucial role in supporting brain health in aging populations.