Continuous Glucose Monitoring (CGM) is a method used to track blood sugar levels in real-time. It involves a small sensor placed under the skin, usually on the abdomen or arm, which measures glucose levels in the interstitial fluid. This data is sent to a device, such as a smartphone or a dedicated monitor, allowing users to see their glucose trends throughout the day and night. CGM is particularly beneficial for individuals with conditions like diabetes, as it helps them manage their blood sugar more effectively. By providing alerts for high or low glucose levels, CGM can assist in making timely adjustments to diet, exercise, or medication, ultimately improving overall health and well-being.