Dr. Michael Roizen hopes to discover a cure for the common birthday. The author of the bestselling book RealAge and Oprah guru, Roizen translates groundbreaking medical research into a series of calculations and choices that promise to reduce age-linked symptoms and diseases. The RealAge Makeover begins with a self-test of 132 health factor questions that compare your calendar age with your "real age"--based on healthy habits plus heredity, he rounds up the usual suspects (sun exposure, sleep patterns, good fats) as well as the unusual (the kind of chocolate you eat, the number of nagging unfinished tasks, your catsup consumption). Although Roizen flags heredity, he focuses on the three key factors of aging: arteries (heart attack, stroke, memory loss), immune systems (prostrate and breast cancer), and environmental stresses (lung cancer, STDs). He offers a sliding scale of difficulty in his "younger every day suggestions." Whether talking about stress, diet, or disease, Roizen offers case examples and subtle and engaging strategies such as describing the role of living beyond your means in aging or the difference between "four-legged" and "no-leg fats." Readers looking for a quick fix will benefit less than those who follow the recommendations that require focus and commitment. As Baby Boomers age and books about turning back time increase, Roizen's will remain a standout. --Barbara Mackoff