Humans have used medicinal herbs since at least 13,000 B.C.; even today, such remedies are touted for the treatment of hundreds of ailments. Modern western medicine emphasizes pharmaceuticals, which have saved millions of lives. Many healers are seeking the proper balance between the holistic prevention of illness and the clinical use of toxic drugs to treat disease. This book examines the evolution of medicine, the work of Sir Alexander Fleming and other great researchers, and the ongoing controversies in this indespensible field of knowledge. Series Information Check it out! Shocker facts, word stunners, and bite-sized bits of seriously strange information shake up reading interest in Shockwave, the exciting series that serves up the world's most extreme science and history for readers to discover.