This report examines the effectiveness of mental health services for elderly individuals suffering from dementia, focusing on the UK context. It begins with an introduction that defines dementia, highlights its impact, and outlines the research aim, objectives, and questions. The literature review explores dementia understanding, the roles of mental healthcare professionals in prevention and treatment, and the best approaches for improving mental health, including cognitive stimulation therapy and patient-centered care. The research methodology section details the qualitative research type, inductive approach, interpretivism philosophy, and data collection and analysis methods, including ethical considerations. The conclusion summarizes the findings, emphasizing the importance of cognitive stimulation therapy and the vital role of mental healthcare professionals in improving the lives of dementia patients. The report underscores the significance of appropriate therapies and treatments and highlights the research methodology elements that contribute to a successful study. It also includes a comprehensive list of references.