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

©2016 Bloomberg News O3SLLQ6TTDS0 (Bloomberg) — Donald Trump has trademarked “Success by Trump” cologne, the “Donald J. Trump Signature Collection” for luggage and shoe-shine kits, and he even held one for “Trump Steaks” until 2014. But comedian John Oliver may beat the real-estate mogul to the punch on another trademark: