pressure

Illustration: Todd Detwiler

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Aldosterone
The Clues
Aldosterone regulates your body's sodium-to-water ratio. But a condition called renal artery stenosis—a narrowing of the blood vessels that supply the kidneys—can trigger the release of the hormone, causing a surge in blood pressure.

What you can do
A heart-friendly lifestyle that keeps your blood vessels healthy can also be a kidney-friendly lifestyle. Minimize salt intake, follow a low-fat diet, get some exercise, and don't smoke.
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