Type 1 diabetes is a form of diabetes in which the immune system damages insulin-producing cells in the pancreas. Because the body makes little or no insulin, glucose builds up in the bloodstream.
How it differs from type 2 diabetes
Type 1 diabetes is not simply caused by eating sugar or by lifestyle. It often begins in childhood or young adulthood, but it can occur at any age. People with type 1 diabetes usually need insulin as part of care.
Why it needs attention
Very high blood sugar can become dangerous, especially if the body starts producing ketones. Symptoms such as extreme thirst, frequent urination, vomiting, confusion, or rapid breathing need prompt medical attention.
Type 1 diabetes is manageable, but it requires ongoing monitoring, medical guidance, and careful planning around food, activity, illness, and insulin.