Metabolic syndrome ties together a host of disorders that the medical community typically thought of as unrelated, or at least having separate and distinct causes—getting fatter (obesity), high blood pressure (hypertension), high triglycerides, low HDL cholesterol (dyslipidemia), heart disease (atherosclerosis), high blood sugar (diabetes), and inflammation (pick your disease)—as products of insulin resistance and high circulating insulin levels (hyperinsulinemia).