Hypertension, or high blood pressure, is a long-term medical condition where the force of blood against artery walls is too high. It is a major risk factor for cardiovascular disease and mortality worldwide. While most cases have no known cause, hypertension can be caused by other medical issues or medications. If left uncontrolled, high blood pressure can damage target organs like the heart, blood vessels, kidneys and brain. Lifestyle modifications like maintaining a healthy weight and following a diet low in saturated fat and high in fruits and vegetables have been shown to help reduce blood pressure. Treatment involves lowering blood pressure through medications to reduce the risks of health complications.