Understanding Continuous Glucose Monitoring (CGM): Benefits and How to Use It

Continuous glucose monitoring (CGM) is a technology that automatically tracks blood sugar levels 24 hours a day, providing real-time data and alerts to help people with diabetes achieve better glycemic control and reduce the risk of dangerous hypoglycemia. This patient education article explains how CGM works, its proven benefits including improved HbA1c levels, reduced time in hypoglycemia, and fewer diabetes-related emergency visits and practical tips for successful daily use. Based on the latest recommendations from the American Diabetes Association and clinical evidence, this guide is designed to help patients understand why CGM is now considered a standard of care for many people with type 1 and type 2 diabetes.