Question

Why a person suffering from high bp is advised to take minimum common salt?

Answer 1

Because common salt increases BP

As Osmotic pressure is directly proportional to the concentration of solutes. Our body fluid contains a number of solutes. On taking large amount of salts, ions enter the body fluid there by raising the conc. of the solutes. As a result osmotic pressure increases which may rapture the blood cells and therefore salt retains body fluid that will make the heart work harder.