How does salt and being overweight affect BP?

How does salt and being overweight affect BP?

A high-salt diet or overweight (obesity) are the most important reasons in the causation of HBP (High Blood Pressure). Obesity burdens the heart and the lungs and thus, forces these vital organs to work harder. Also, eating more salt retains more water in the body, and this in turn results in the increase of blood pressure.  

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