Part I: what is worrying, and where does it come from? -- Making mountains out of molehills: the process of catastrophic worrying -- The origins of worrying: what made you a catastrophic worrier? -- The worries of the world: what do people catastrophize about? -- Worried sick: how does worrying affect your mental and physical health? -- Part II: why you worry, and how to stop -- Why do we worry about things that don't happen?: worrying as a compulsive lifestyle choice -- The toxic duo: anxiety and worry: the collision that creates catastrophizing -- Why doesn't worry have an "off" switch?: the worry machine -- Combat catastrophizing by practicing good worry habits: begin to manage your chronic worrying -- The "smart" worrier: become a "smart" worrier and learn how to problem solve -- Accentuate the positive, eliminate the negative: tweaking your worry to make it adaptive.