Stem cells are the foundation cells for every organ, tissue and cell in the body. They are like a blank microchip that can ultimately be programmed to perform any number of specialised tasks. Stem cells are undifferentiated, blank cells that do not yet have a specific function. Under proper conditions, stem cells begin to develop into specialised tissues and organs. Additionally, stem cells are self-sustaining and can replicate themselves for long periods of time. These unique characteristics make stem cells very promising for supplying cells to treat debilitating diseases like Alzheimer’s disease, cancer, Parkinson’s disease, type-1 diabetes, spinal cord injury, stroke, burns, heart disease, osteoarthritis and rheumatoid arthritis. This book gathers important leading-edge research in the field.