Which of the following helps to keep a healthy cardiovascular system?

Only (i) and (ii)

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Only (ii) and (iii)

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Only (i) and (iv)

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Only (iii) and (iv)

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Solution

The correct option is D Only (iii) and (iv)
Exercising is good for the cardiovascular system. Intake of sodium increases water retention by the body, increasing pressure on the heart. Eating more fruits and vegetables is good for the heart. When there is too much cholesterol in your blood, it causes "hardening of the arteries" so that arteries become narrowed and blood flow to the heart is slowed down or blocked. Thus, we should minimise high cholesterol food.

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