This study aims to identify the effectiveness of mental health services for elders suffering from dementia. It explores the causes, symptoms, and treatments of dementia, as well as the role of mental health professionals in preventing dementia in elderly individuals. The study also aims to discover the best approach to improve the health of elderly with dementia. The research questions include the causes of dementia, the role of healthcare professionals in prevention, and the best approach for improving mental health in elderly with dementia.