Metabolic syndrome is a cluster of conditions that occur together, increasing the risk of heart disease, stroke, and type 2 diabetes. These conditions include high blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol or triglyceride levels. Metabolic syndrome is often triggered by obesity and lack of physical activity, and is closely linked to insulin resistance. Treatment typically involves lifestyle changes such as diet and exercise, along with medication to control blood pressure, cholesterol, and blood sugar levels.