Why does your energy take a nosedive in mid-afternoon? Why do you sometimes have so much trouble concentrating? Why do you crave chocolate? Elizabeth Somer answers these questions and more in this completely updated and revised edition of Food & Mood. Drawing from thousands of the most up-to-date scientific studies, Somer explains in an accessible, interactive style why what you eat has a direct influence on how you feel, think, act, and sleep. Somer's revolutionary Feeling Good Diet, as well as many self-assessments, quizzes, and questionnaires, allows you to customize her step-by-step advice to take control of your eating habits, mood, and mind.