INS and Hypoglycemia: If a hypoglycemia is predicted to occur in the near future, i.e. predicted glucose concentration falls below a threshold T, then a basal insulin attenuation factor \documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$$0\le \phi \le 1$$\end{document}0≤φ≤1 is calculated and multiplied for the nominal basal insulin injection rate to reduce basal insulin delivery, thus possibly avoiding the predicted hypoglycemic event.