As you read this book, you will see that there is an epidemic of depression among adults and among children in the United States today. As Chapters 6–10 document, depression is not just about mental suffering; it is also about lowered productivity and worsened physical health. If this epidemic continues, I believe that America’s place in the world will be in jeopardy. America will lose its economic place to less pessimistic nations than ours, and this pessimism will sap our will to bring about social justice in our own country.
