However, high sodium is not unique to the elderly whereas low sodium levels (hyponatremia) are more likely to arise with age as well as in some diseases and the use of certain medication.yponatremia may be a consequence of too much water in the body which then dilutes the sodium levels (solute dilution) but can also be due to too little sodium in the body (solute depletion).
St. Louis County started separate record keeping from St. Louis City in 1877. It was not until December 1878, however, that the county established a new courthouse in the new county seat of Clayton, Missouri.
It's the city of New York that is divided into boroughs. In 1898, the modern city of New York was formed by merging the County of New York (modern day Manhattan and the Bronx), the then independent city of Brooklyn, Richmond County, and the western parts of then Queens County (the remainder is modern day Nassau County). To make people happy, the new city was divided into boroughs (similar to London). The original city of New York became Manhattan (named after the island it is on). The remainder of New York County became The Bronx. Brooklyn stayed Brooklyn. Queens County is also Queens. And Richmond County became Staten Island (also named after the island it is on).