You have absolute power to control your crazy. While he's best known as the voice of reason and the most level-headed cast member on MTV's Jersey Shore, what most people don't know about Vinny Guadagnino is that he suffers from general anxiety disorder, a mental condition he shares with more than 40 million adults in the United States alone, and one he's battled for most of his young adult life. As Vinny describes it, his anxious mind can make him...