Diabetes mellitus is a chronic health condition that occurs when the body cannot properly regulate blood sugar levels. This can happen due to insufficient production of insulin, a hormone that helps cells absorb glucose, or because the body becomes resistant to insulin's effects. There are two main types: Type 1 diabetes, which is often diagnosed in children and young adults, and Type 2 diabetes, which is more common in adults and is often linked to lifestyle factors. Managing diabetes involves monitoring blood sugar levels, following a balanced diet, and, in some cases, using medications or insulin therapy. If left untreated, diabetes can lead to serious complications, including heart disease, kidney damage, and nerve problems. Regular check-ups and a healthy lifestyle are essential for those living with this condition.