Potassium is one mineral that plays an important role in controlling the amount of fluid in the body. Another is sodium. Too much sodium -- which the body mainly gets from salt -- leads to the body retaining fluid.
Depending on which account you believe, the real McCoy was a boxer, an inventor, a rumrunner or a Scottish clan leader. Here are just a few of the phrase's possible origins: In the late 1800s, American welterweight champion Norman Selby boxed under the name Kid McCoy.. Two stories about Selby give a possible explanation for the phrase. In the first story, Selby was challenged by a drunk in a bar, who questioned whether he was really the legendary fighter he claimed to be.
ONE theory is that the name was taken from George (Geordie) Stephenson, the mining and railway engineer who hailed from the north-east. Another is that it derives from a term of abuse coined by the Scottish Jacobites in the 1745 Rebellion because of the defence of the town of Newcastle against them by supporters of King George (Geordie) II. The second theory is more plausible because the term Geordie is properly used for natives of Newcastle only. Others originating from the north-east are Tynesiders (from the towns along the Tyne, from Blaydon and Newburn downstream), Northumbrians, Durhamites (Dunhelmians if you are posh) or Makems (from Sunderland).