One of the most important dividends of the Human Genome Project will be a much greater understanding of the influence of genes on disease and disorders in children (from asthma to autism) and adults (including heart disease, virtually all cancers, and Alzheimer's disease). The nature of genetic risks in families is becoming clearer and this book is written to help people understand them. Philip Reilly, a physician geneticist, who has given hundreds of lectures on this subject, takes a user friendly approach. Drawing on the many questions he has been asked (for example, My sister has multiple...