Loop is a DIY automated insulin delivery system with more customization and features than FDA-approved systems on the market. Justin Eastzer is a CNET Perspectives Contributor and former CNET host.

Closed-loop control systems of insulin delivery may improve glycemic outcomes in young children with type 1 diabetes. The efficacy and safety of initiating a closed-loop system virtually are unclear.

TfL combines open and closed loop systems, using Oyster Cards, contactless card payments, and NFC Google or Apple pay, alongside physical ticketing. Transport for London (TfL) has long been regarded ...