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.
Ski jumping. Ski jump redirects here. For an aircraft carrier's ski-jump, see Aircraft ski-jump. Ski jumping is an Olympic winter sport which was firstly contested in Norway in the late 19th century, and later spread through Europe and North America in the early 20th century. The ski jumping venue consists of the jumping ramp (in-run), take-off table, and a landing hill.