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. 

ps- this is only for information, always consult you physician before having any particular food/ medication/exercise/other remedies.

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