The most comprehensive and scientifically accurate guide on Kratom today. Unlike virtually all of the books on Kratom which aren't much more than 34-page term papers turned into "books," this is a comprehensive guide to the subject. It is carefully researched and written by an expert in human physiology, Dan Chiras, author of over three dozen books, including a college textbook, Human Biology. The coauthor, Linda Stuart-Chiras, holds a BS in biochemistry...