How low you should go with blood pressure and cholesterol? from the Harvard Heart Letter
For years, experts have been dancing the limbo with blood pressure and cholesterol, routinely lowering the bar in the quest to prevent heart attacks, strokes, heart failure, and other cardiovascular conditions. Two articles in the August 2011 Harvard Heart Letter explore healthy targets for blood pressure and harmful low-density lipoprotein (LDL) cholesterol.
High blood pressure (also known as hypertension) slowly damages arteries. It is a key contributor to heart attack and stroke. Low blood pressure is harmful in more immediate ways. It can cause blurry vision, confusion, dizziness, fainting, and falls. Among healthy people, a good blood pressure is under 120/80. For people with hypertension, lowering blood pressure to 120/80 may be a good goal, but is usually more trouble than it's worth. That's why most people with hypertension aim for a target under 140/90.
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