Most inhabitants of the earth feel seasonal changes to some extent. But others find that seasonal affective disorder (SAD), in its worst cases, can interfere with day-to-day living and incapacitate its victims. In WINTER BLUES, Norman E. Rosenthal, M.D., addresses the problems of those who suffer from this disorder at length, touching on causes and symptoms, explaining the different ways it can manifest, and even addressing "summer SAD." He presents a complete guide to various treatments--traditional and more modern--including light therapy and antidepressant medication as well as herbs and vitamins. With plenty of examples and anecdotes, Rosenthal keeps this guide personal and accessible while sharing the depth of his extensive experience. Advice for family and friends, a history of SAD through the ages, and specific advice for seeking further help enrich this volume, and a dietary guide, menus, and recipes round out the practical advice found here. A test for self-assessment will enable the reader to judge his or her own susceptibility to SAD. On a gray day or with the sun shining, the reader affected by the weather will find understanding, hope, and direction in WINTER BLUES