Sodium and Health

I'm extremely concern about the Sodium on processed food. Lately I started to check the labels, and amazingly found that almost everything has huge amounts of sodium. I started to compare with Soy Sauce, which is salty and realized that if something has similar percentage of salt... is not good....

For example, the Soy Sauce I have is like this:
KIKKOMAN, naturally brewed, Soy Sauce:
Sodium: 920mg---38% (you have now an idea of salty...)

KIKKOMAN –LITE–Soy Sauce-naturally brewed:
Sodium: 575mg---24% (much less, but still salty...)

The Soy Sauce is supposed to BE salty, that's why you use it to condiment salads, etc. But is the only thing I found to help me to know the Percentages about labels.

For example:
I bought (without knowing this) a "herbal" wraps, I tried one, and Oh My God! I couldn't eat it! Besides, I made it with cheese (another salty item). That's how I checked the label and saw: 21% of sodium (or something like that, I cannot remember now)! Then, checked the Soy sauce lite and thought : Of Course, it's like Soy Sauce!
I returned the wraps, just to let them know that is -too salty-.
I even wrote to the company to complain! The brand is Ole Mexican Foods, Herbal spinach wraps.

Then I started to check the labels and I found this article: The link of this article is posted, so you can read more about this issues.
http://www.healthnet.org.uk/facts/level2/f006.htm

"Sodium effects our health in several ways. By increasing blood pressure it can cause heart disease and ultimately, heart failure. Stroke is also very strongly related to blood pressure. A high salt diet also causes damage to the kidneys and kidney stones. Salt affects many other organs of the body too, including the bones (sodium causes the body to excrete calcium which makes the bones brittle, a condition called osteoporosis), the stomach (stomach cancer is linked to high salt intakes), and possibly the lungs (salt may make an asthmatics condition worse).

Studies have found that in populations who regularly consume salt, blood pressure rises with age. This was always thought to be a normal and natural thing that happened as we get older but scientists have discovered that it does not happen in societies who don't use salt (such as Amazonian Indians). It has also been found that reducing your intake of sodium (salt) will cause your blood pressure to fall but the size of the fall depends upon two important factors. Firstly, it depends on your initial blood pressure: the higher it is to start with, the greater the fall will be. This means that cutting down on salt will work fastest on those who need help most, i.e. those with the highest blood pressures. Secondly, it depends on your age: the older you are, the more salt-sensitive you are, so salt has an even greater effect on blood pressure as we age. "