The metabolic syndrome is a condition in which people have at least 3 of the following abnormalities: overweight, high blood pressure, high triglyceride levels (a bad type of fat in the blood), low high-density lipoprotein cholesterol levels (“good”cholesterol), and high blood sugar levels. People with the metabolic syndrome are at high risk for developing type 2 diabetes and cardiovascular disease, including heart attack and stroke. Type 2 diabetes (adult-onset diabetes) interferes with the body's ability to store energy from food. The result is high blood levels of sugar. Many people with type 2 diabetes have slightly high levels of blood sugar for years before reaching diabetes levels, a condition sometimes called pre-diabetes. A large study showed 2 ways to prevent or delay the development of diabetes in people with pre-diabetes. The first is a diet and exercise program for weight loss. The other is a small daily dose of a diabetes medication called metformin. It is unknown whether these treatments might also prevent or reverse the metabolic syndrome.