Type 2 diabetes is a metabolic disorder that is characterized by high blood glucose in the context of insulin resistance. It usually develops after the age of 40. Many people have diabetes for a long period of time before their diagnosis is made, as the symptoms vary and are vague.
The most common symptoms are being thirsty a lot, passing large amounts of urine, tiredness, weight loss, blurred vision, and frequent or slow-healing infections. The major risk factor for type 2 diabetes is obesity. Others are type 2 diabetes in a first-degree relative, history of previous impaired glucose tolerance or impaired fasting glucose, high blood pressure or high cholesterol levels, history of gestational diabetes mellitus, and polycystic ovarian syndrome.
Genetics play an important role in developing type 2 diabetes. Although diabetes cannot be cured, it can be treated successfully with lifestyle changes, diet, and medication if needed.