Ageing is a natural process and it is necessary for the survival of a species. You can't really "kick the habit" but this does not mean you are powerless to alter the rate at which ageing occurs. It is likely within the very near future, humans will be able to live to 150 years and beyond. I am talking about those of you reading this book, not a future generation. This does not imply being old for longer, there is clearly no point in that. It means staying young, healthy and disease free longer. Avoiding dementia, cancer, heart disease, diabetes, arthritis and all the other diseases which occur as you age. We aim to maximise your health span and quality of life, and secondarily your lifespan, avoiding all the diseases above. This book summarises the science of ageing and the strategies you can apply today to maximise the disease-free span of your life. To slow the ageing process.