Diabetes is a chronic metabolic disorder characterized by high blood sugar levels. It affects millions of people worldwide and requires lifelong management. This note aims to provide a brief overview of diabetes, its types, causes, symptoms, complications, and treatment options.Types of Diabetes:Type 1 Diabetes: This type occurs when the body's immune system mistakenly attacks and destroys the insulin-producing cells in the pancreas. People with type 1 diabetes require insulin injections or an insulin pump to survive.Type 2 Diabetes: The most common form of diabetes, type 2, occurs when the body becomes resistant to insulin or doesn't produce enough insulin to regulate blood sugar levels properly. It is often linked to lifestyle factors such as obesity, physical inactivity, and poor diet.Gestational Diabetes: This type develops during pregnancy and usually resolves after childbirth. However, women who have had gestational diabetes are at a higher risk of developing type 2 diabetes later in life.Causes:The exact causes of diabetes vary depending on the type:Type 1 diabetes: The precise cause is unknown, but genetic and environmental factors, such as viral infections, may contribute.Type 2 diabetes: Lifestyle factors play a significant role, including obesity, sedentary lifestyle, poor diet, and genetics.Gestational diabetes: Hormonal changes during pregnancy can interfere with insulin function.