High blood pressure, also known as hypertension, is a condition in which the force of the blood against the artery walls is too high. This can lead to serious health problems, such as heart attack, stroke, and kidney failure. High blood pressure is often caused by lifestyle factors, such as being overweight, not getting enough exercise, smoking, and eating an unhealthy diet. It can also be caused by certain medical conditions, such as diabetes, kidney disease, and hormonal imbalances. Treatment for high blood pressure usually involves lifestyle changes, such as eating a healthy diet, exercising regularly, and quitting smoking. Medications may also be prescribed to help lower blood pressure.