Patients with Type-1 diabetes don't have enough healthy islets of Langerhans cells — hormone-secreting cells of the pancreas. Granules inside these cells release insulin and other substances into the blood.
Steve Gschmeissner/Science Source
Carmen Smith now gets the insulin she needs via her doctor's prescription. When she lacked health insurance, buying a version of the medicine over the counter was cheaper, she says. But it was hard to get the dose right.
Lynn Ischay for NPR
Miss Idaho, Sierra Sandison, shown here in her hometown of Twin Falls, Idaho, decided not to hide the insulin pump she wears to treat Type 1 diabetes during the pageant.