Healthy aging sourcebook : basic consumer health information about maintaining health through the aging process, including advice on nutrition, exercise, and sleep, help in making decisions about midlife issues and retirement, and guidance concerning practical and informed choices in health consumerism; along with data concerning the theories of aging, different experiences in aging by minority groups, and facts about aging now and aging in the future; and featuring a glossary, a guide to consumer help, additional suggested reading, and practical resource directory /