Prehypertension is a warning sign – a yellow light in the traffic lights of cardiovascular disease. It means that you will probably develop high blood pressure in the future. Hence, it is a precursor of complications that come with hypertension such as increased risk of heart attack, stroke, coronary heart disease, heart failure, and kidney failure. If you are overweight, lead a sedentary lifestyle, you smoke, drink excessive alcohol, eat food with high salt content, and have a family history of hypertension; you are most likely at risk of prehypertension. Prehypertension usually poses no symptoms and is diagnosed at a doctor’s clinic or pharmacy when your blood pressure is taken during a regular health screening.