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What is the effect of physical activity on cognitive function in patients with dementia a meta-analysis of randomized control trials?

According to the World Health Organization (WHO), over 55 million people worldwide are living with dementia, a number projected to reach 78 million by 2030. This escalating health crisis has driven extensive research into non-pharmacological interventions, leading to the central question: **What is the effect of physical activity on cognitive function in patients with dementia a meta-analysis of randomized control trials?**