Andrew chevallier

ENCYCLOPEDIA OF HERBAL MEDICINE, In the twenty years since the first edition of this encyclopedia in 1996, herbal medicine has gone through unprecedented change.
Herbs, which have always been the principal form of medicine in developing countries, have again become popular in the developed world, as people strive to stay healthy in the face of chronic stress and pollution, and to treat illness with medicines that work in concert with the body’s defenses.
A quiet revolution has been taking place.