How can reducing the amount of salt in someone's diet affect their overall blood pressure?

Salt: The more salt in the body the more blood volume and the higher the vascular resistance. By restricting salt intake you help minimize these effects.

Salt: Salt helps, but it's the over health that controls yours bp. Like smoking, amount of alcohol, or stress. Watch your blood pressure with your primary doctor, and buy a expensive b/p cuff to monitor it at home.