NMN, Metformin, and Rapamycin Mitigate Age-Related Cognitive Impairment This study by the University of North Texas had the following findings: • Treatment with (1) NMN, (2) metformin, or (3) rapamycin improves learning and memory in rats modeling vascular cognitive impairment (VCI), the second leading cause of dementia after Alzheimer’s disease. • The compounds reduce brain lesions caused by the lack […]