This book represents 10 plus years of research and development. The aim of this book is to give the reader a comprehensive user-friendly review of more herbs and formulas of the best-known medicinal plants of Guyana and their uses. Leaves of Life, Volume2: Single Herbs and Formulas presents an ecological perspective of health and disease as it examines the interrelationships among environmental, cultural, social, and physiological factors. It incorporates the traditional pharmaceutical practices with modern medicine and presents a compendium of single medicinal plants and formulas from Guyana and their usage. .Leaves of Life, Volume2: Single Herbs and Formulas, effectively combines the multipurpose of single herbs into dynamic ground-breaking poly herbs or formulas with case studies. Most of the herbal medicinal formulas cited in this Volume are widely studied for their active constituents and pharmacology bioavailability in clinical and nonclinical trials.