By J. Lang Wood   Staying on a diet is a challenging endeavor, which can often be made more difficult by random days when you feel ravenously hungry for no particular reason. Researchers find that there are some common reasons why these especially hungry days occur, and understanding the triggers

I have a buddy in Taiwan that makes a pretty good living teaching English as a second language.  He should probably keep his ears open for the possibility of another career.  I say ears because the device that may put him and other language teachers out of a job is