@explainique: RAAS is one of the body’s main systems for controlling blood pressure, fluid balance, and kidney function. When blood pressure drops or the kidneys sense low blood flow, they release renin. This starts a chain reaction that leads to angiotensin II, which tightens blood vessels and helps trigger aldosterone release. Aldosterone tells the kidneys to hold onto sodium and water, increasing blood volume and raising blood pressure. This system is useful when the body needs to restore pressure — but when RAAS stays overactive, it can contribute to hypertension, heart strain, and kidney stress. Simple idea: RAAS raises blood pressure by tightening blood vessels and helping the body retain salt and water. #RAAS #BloodPressure #Hypertension #KidneyHealth #Pharmacology

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Friday 03 July 2026 13:33:37 GMT