Harvard Heart Letter

Lowering blood pressure: How low should you go?

High blood pressure wreaks havoc in the circulatory system. It is a key contributor to heart attack and stroke. However, blood pressure that is too low can lead to problems such as blurry vision, dizziness, confusion, and fainting, which can diminish quality of life, especially in older people. In recognition of the trade-off between lower risk of cardiovascular disease and overall well-being, experts from three major heart groups have issued an updated set of blood pressure guidelines that call for a flexible approach in designing medication regimens for treating hypertension.
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