In the late 1980s, pediatric endocrinologists at the Children’s Hospital in Winnipeg began to notice a new cohort appearing in their clinics for young people with diabetes.Indigenous youngsters from two First Nations in northern Manitoba and northwestern Ontario were showing up not with type 1 (or insulin-dependent diabetes), but with what looked like type 2 diabetes, until then a condition that was restricted to people much older. Investigation led the doctors to learn that someth...