Diabetes causes the blood sugar levels in the body to rise but it is important to keep it under control. But why is it so? Dr Arvind Gupta, Senior Consultant, Department of Diabetes, Obesity and Metabolic Disorders from the Mahavir Jaipuria Rajasthan Hospital, Jaipur, talks about the importance of keeping blood glucose levels under control and what the target values should be. He also tells us about the complications of having uncontrolled blood sugar levels.