A recent study confirmed that salt intake tends to increase blood pressure and found that, as a result, people with high blood pressure who significantly cut their salt intake during the study had lower blood pressure by the end of the study
However, it was also found that some people who had very high salt intake both before and throughout the study maintained very low blood pressure
Persons suffering from abnormally low blood pressure have heightened salt cravings, which ensure that their blood pressure does not drop too low.