The Handbook of Immortality is a practical guide to successful aging. In the handbook, the different theories of what causes aging and aging-related diseases such as Alzheimer's Disease, cancer, cardiovascular disease (heart attack), stroke and diabetes are explained. Scientists have been working hard to understand how the effects of aging and the risks of developing these aging-related diseases can be reduced. In 2011 there were more than 14,000 scientific studies on aging and related diseases which included the effects of carnosine, green tea, aspirin, melatonin, resveratrol, garlic and many more vitamins and substances. In the handbook, the scientific evidence of the possible benefits (or not) of these substances are explained in easy to digest, everyday language with a dash of humour.