This report focuses on the Mini-Mental State Examination (MMSE), a widely used evaluation tool in public health. The MMSE, developed in 1975, is a questionnaire designed to detect cognitive impairment, differentiating between organic psychiatric patients and those with functional issues. The report details the MMSE's use, which involves a 30-question assessment conducted in approximately 5-10 minutes, evaluating recall, focus, calculation abilities, and speech orientation. A score of 24 or more indicates no impairment, 18-23 mild impairment, and 0-17 severe impairment, often indicating dementia. The strengths of the MMSE include its ease of use without requiring professional training and its applicability in diagnosing and tracking Alzheimer’s disease. However, the report also highlights weaknesses, such as the influence of demographic factors, its limitations in detecting mild cognitive impairment, and its reliance on verbal responses, potentially overlooking visuospatial or constructional praxis. The report concludes with a caution that the MMSE should only be used with individuals who are at least grade 8 qualified and fluent in English to avoid discrepancies based on education and linguistic background.