If you live with type 1 diabetes, you have to constantly keep track of your blood sugar levels and give yourself just the right amount of insulin. It's arduous, and more than a little frightening when you know that the wrong dose could have serious consequences. However, researchers might have a way to let diabetics focus on their everyday lives instead of pumps and needles. They've successfully trialed an artificial pancreas system that uses an algorithm on a smartphone to automatically deliver appropriate levels of insulin. The mobile software tells the 'organ' (really an insulin pump and glucose monitor) to regulate glucose levels based on criteria like activity, meals and sleep, and it refines its insulin control over time by learning from daily cycles. Effectively, it's trying to behave more like the pancreas of a person without diabetes.