INS and type 2 diabetes mellitus: In addition, the observed negative correlation in the current study between postprandial insulin concentrations (iAUC 0–150 min) and the performance in the WM test at 120 and 150 min, as well as the positive correlations between increased insulin sensitivity and total WM performance, are important novel findings and can add to the understanding of underlying mechanisms between T2D and increased risk of impaired cognitive functions and mood.