The Rambam always took the rationalist approach in Torah, and he was precisely the same way in his practice of medicine. While the rest of the world was steeped in superstition, he advocated common sense preventative medicine, such as sensible diet, sleep, and cleanliness, and was even the first observer of the affect of mental health on overall health. Rabbi Wein reviews the medical advice contained in the Rambam's personal letters and uncovers his fascinating but taxing years as court physician to the Sultan.