For the 1.25 million American adults and children with type 1 diabetes, managing blood-sugar levels is a 24/7 affair that involves sticking their fingers many times a day and either manually injecting insulin as needed or wearing an insulin pump.Blood glucose management is an inexact science, with levels too high or too low having dangerous consequences. Even a small overdose of insulin can be deadly. Boston University Professor Ed Damiano’s involvement with type 1 diabetes began in May 2000 on a highly personal note when his son David was diagnosed at just 11-months old.