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The precise way people develop high blood pressure, known as hypertension, is unknown, according to WebMD. However, there are several risk factors for the disease, including obesity or excess weight, smoking, family history and too much salt in the diet.


High blood pressure often presents few or no symptoms, reports the American Heart Association. When symptoms present themselves, it is during hypertensive crisis, which can cause severe headaches, anxiety, shortness of breath and nosebleeds.


Treatment for high blood pressure or hypertension depends on the severity of the condition. Treatment can include lifestyle and dietary changes, smoking cessation, stress management and drug therapy, according to the National Heart, Lung, and Blood Institute.


There are guidelines for an optimal blood pressure, but no "perfect" blood pressure, according to Cleveland Clinic. Generally, optimal blood pressure is less than120 mmHg systolic over less than 80 mmHg diastolic, but these numbers may vary from individual to individual depending on factors such as


Blood pressure is caused by the force of the blood as it pushes against artery walls, according to WebMD. This pressure is measured during the active and resting phases of every heartbeat.


Blood pressure is considered to be high when the systolic reading is between 140 and 159 mm Hg or the diastolic reading is between 90 and 99 mm Hg or higher, according to the American Heart Association. This is known as stage 1 hypertension. A systolic reading of 160 mm Hg or higher, or a diastolic


Low blood pressure, or hypotension, occurs when a person's blood pressure measures below 90 for systolic and 60 for diastolic, according to WebMD. Having just one number below these given figures is enough for a person to have hypotension.


High blood pressure can be minimized or prevented by home remedies such as garlic, potassium-rich foods, and fresh fruits and vegetables, according to HowStuffWorks. Other medicine alternatives that WebMD lists include herbal remedies such as ginseng, snakeroot and hawthorne, but such remedies must


One of the most important ways of controlling blood pressure is taking medication regularly, according to the Centers for Disease Control and Prevention. Individuals who have difficulty remembering to take their medication should talk with their doctor about options. Other ways to control blood pres


According to About.com, normal blood pressure is 120 millimeters of mercury during a heart contraction and 80 millimeters of mercury during relaxation. This results in blood pressure readings in the range of 120/70 to 140/90. Blood pressure readings that surpass that amount points to high normal blo