20 foods that lower blood pressure — and which foods to avoid

Although almost half of all Americans have hypertension, or high blood pressure, only a small number of them are managing it, according to the Centers for Disease Control.

What causes high blood pressure?

Blood pressure measures the pressure of the blood pushing against the walls of the arteries. Normal blood pressure fluctuates throughout the day, but healthy blood pressure is considered to be lower than 120/80 mm Hg (millimeters of mercury). 

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