WEDNESDAY, Sept. 23, 2020 (HealthDay News) — For older adults with type 2 diabetes, cognitive decline is slower and dementia risk reduced for those receiving metformin, according to a study published online Sept. 23 in Diabetes Care. Katherine Samaras, M.B.B.S., Ph.D., from the Garvan Institute of Medical Research in Darlinghurst, Australia, and colleagues conducted a...