Presents the foundations for understanding gerontology and addresses, chapter by chapter, many different aspects of ageing. The "gerontological boom" of the 20th century has led to spectulation about what it will be like to grow old in years to come and the resulting consequences for society. In addressing the different aspects of ageing, this book contributes to the science of "gerontology". The various chapters cover the meaning of later life, cognitive loss in old age, personality changes and adjustments, abnormal ageing including dementia and depression.