The scores of books on herbs already available generally restate old, often outdated lore about herbs. Now, Herbs Demystified does something entirely different: It is the first book to explain exactly what herbs actually do inside our bodies and how they achieve their effects. Biochemist Holly Phaneuf covers 100 of the most popular herbs-astragalus, black cohosh, chamomile, echinacea, garlic, gingko, ginseng, milk thistle, pine bark extract, saw palmetto,...