Unfortunately, I am unable to create a summary of the requested article because the article titled "Age, HIV, and Metabolic Syndrome Together Tied to Cognitive Impairment Risk" from MedPage Today is not found in the search results provided. Available results include information on other health topics such as blood sugar and memory, HIV and chronic pain in older adults, and sarcopenia, but not the specific article you requested to be summarized. In order to create an accurate and factual summary as per your requirements, I need access to the full text of this particular article.