Type 1 diabetics are insulin dependent. They must prick their finger at least 4 times a day to check their blood glucose levels and then give themselves an insulin shot before every meal. Carbs at every meal or snack must be calculated to ensure the proper balance with the insulin intake.
This disease typically affects children who must endure the daily regimen of shots and finger pricks. And since there is no cure, these children grow up to be adults who must continue to monitor themselves for the rest of their lives.