Persons seem to be living longer and remaining more active than their parents and grandparents.
This is leading to social and demographic shifts that must be accommodated by society. On the other hand it presents perplexing questions about the underlying processes and determinants of healthy aging. This book gives a design for research that will increase our understanding of the factors that influence healthy aging and can lead to improvements in reducing the levels of disability in the population. It s focus is on biobehavioural and psychological factors contributing to healthy aging. Since human aging is determined by many interacting conditions inside and outside of the organism, research should concentrate on ecological relationships between the human organism and its social and physical environment.