Diabetes describes a group of metabolic diseases in which the person has high blood glucose levels over a prolonged period. Diabetes can be classified into two main types: type 1 diabetes and type 2 diabetes. Type 1 diabetes was characterized by absolutely lack of the production and secretion of insulin, due to destruction of the insulin producing pancreatic β-cells. Type 2 Diabetes, which was characterized by insulin resistance and the body's inability to secrete enough insulin.
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