Salt affects people - blood pressure - in different ways. Some people more, others less.
Easy test. Get a blood pressure monitor. Keep taking your average salt intake for ten days-maybe two weeks. Mark down your BP every day - maybe twice a day. (See link below on when to take BP).
After that period with normal salt intake, start the next ten days - or two weeks, with no salt at all.
Repeat the BP measurement for that period.
When all done compare the results. No real change indicates salt doesn't affect you as much as others who find a real change.
Not a guaranteed procedure but ask your doctor or health professional.
Also.....try this:
http://en.wikipedia.org/wiki/Hypertension As to the topic - not all people are affected by salt in the same way. Such a law banning salt is stupid and irresponsible.