Continuous Glucose Monitoring (CGM) is a technology used to track blood sugar levels in real-time. It involves a small sensor placed under the skin that 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. CGM is particularly beneficial for individuals with diabetes, as it helps them manage their condition more effectively. By providing continuous feedback, CGM can alert users to high or low glucose levels, enabling timely interventions and better overall health management.