TIME editors review the major advances in health, science and nutrition in this year-end health wrap up issue. The Year in Medicine from A to Z provides a wealth of useful information that is both incisive and accessible. High-end graphics and photographs make every page a visual complement to advertisers’ creative. For 2007, this annual health guide will showcase a lead-in feature on The Science of Morality. TIME’s science and health staff will approach the topic with rigor and new insight in answer to questions that, seemingly philosophical, have an effect on our health.