Insulin is a very important hormone of the body. The descriptive video tells us about insulin and its secretion from beta cells. The stimulation of insulin secretion and inhibitors of insulin secretions are also discussed. TIMELINE: 0:00 Insulin secretion from beta cells 2:15 Stimulation of insulin secretion 3:48 Glucose biphasic stimulation of insulin secretion 4:43 Insulin secretagogues 5:52 Inhibitor of insulin secretion 6:42 Metabolism of insulin 6:52 Summary