Diabetes Mellitus, simply called diabetes, is a lifelong metabolic disorder affecting how the body uses blood sugar. There are two main types: Type 1 diabetes usually develops in young people, caused by the body failing to produce insulin. Type 2 diabetes is more common in adults and closely linked to obesity, sedentary lifestyle and unhealthy eating habits. Common symptoms include frequent thirst, excessive urination, fatigue and unexplained weight loss. Long-term high blood sugar can damage nerves, eyes, blood vessels and internal organs. While there is no complete cure for diabetes, it can be well controlled through diet management, physical activity, medication and regular medical monitoring.