The chapters are divided into general categories, most of which involve items that are ingested. Herbs, foods, minerals, vitamins, combination supplements... the list seems endless. Remaining chapters are devoted to a variety of more physical remedies like tai chi, acupuncture, massage, and meditation. In every case, you'll find a distinctive newspaper style quite different from the personal--not to say touchy-feely--format of most alternative health books. After noting the studies and statistics cited, even the hardiest skeptics may decide to add a daily multivitamin or reconsider hormone replacement therapy. Some of the writers are the biggest skeptics around; as one says on the topic of vitamin-rich cosmetics, "I've been known to skip the workout and just tone my eyelashes." Whether you're a chronic doubter or have a tendency to believe everything you read, this guide has a deserved spot on the shelf, especially as a reference for double-checking suggestions from Web sites, well-meaning friends, or other less straightforward sources. --Jill Lightner