Insulin-dependent diabetes is on the rise all around the world, but the cause of this disease remains unclear. There is a theory, however, that kids need a bit of dirt to build up their defences against this and other autoimmune diseases. This Futuris episode also looks at the DIAdvisor project: researchers have developed a new high-tech system constantly monitoring the blood glucose levels of diabetic patients, warning them if corrective action is needed. Wireless sensors fixed on the patients’ body measure their blood composition and physical activity.