Diabetes Mellitus is a chronic condition characterized by elevated levels of blood glucose (hyperglycemia) due to deficiencies in insulin production, insulin action, or both. There are mainly two types: Type 1 Diabetes (T1D) and Type 2 Diabetes (T2D). T1D is an autoimmune disorder where the body's immune system attacks insulin-producing cells, while T2D is more closely associated with lifestyle factors and insulin resistance.