The short video illustrates the concept of Type 1 Diabetes Mellitus in a compact manner. It tells us why Diabetes Mellitus occurs, its symptoms that no one should ignore and associated metabolic changes. Hyperglycemia, Ketoacidosis and Hypertriacylglycerolemia are also discussed. TIMELINE: 0:00 Introduction 0:19 What is Diabetes type 1 and why does it occur? 1:03 Symptoms 1:23 Associated metabolic changes 1:43 Hyperglycemia and Ketoacidosis 3:04 Hypertriacylglycerolemia