It's a rare individual that needs to increase his sodium intake -- after all, most Americans consume way more than the 1,500- to 2,300-milligram maximum a day. However, certain people -- such as athletes who sweat a lot -- might experience a condition known as hyponatremia, or low levels of sodium in the blood.
Skiing has a history of almost five millennia. Although modern skiing has evolved from beginnings in Scandinavia, it may have been practiced as early as 600 BC in what is now China. The word ski is one of a handful of words Norway has exported to the international community.
History: Although the sport of luge is sometimes thought of as being relatively new, sled racing is actually one of the oldest of all winter sports. The word luge comes from the French word for sled. In Germany it is known as rodel, and it is in the alpine countries of Europe that the sport began.