Narrow blood vessels increase the barrier to blood flow. The smaller your arteries, the more resistance and, thereby, your blood pressure. High blood pressure for a long time can result in various health problems, including heart disease. Hypertension is prevalent and develops over several years. There are no noticeable symptoms. However, even in the absence of symptoms, high blood pressure can damage blood vessels and organs, including the brain, heart, eyes, and kidneys. Early diagnosis in such cases is crucial. Routine blood pressure checkups might help in the early detection of any changes. In case of high blood pressure, your doctor may monitor it for a while to see if there is any improvement.