'''''Encyclopedia of Health and Ageing''''' covers the [[biology|biological]], [[psychology|psychological]], [[sociology|social]], and [[economics|economic]] aspects of [[health]] and aging and impacts within the health-care system. | '''''Encyclopedia of Health and Ageing''''' covers the [[biology|biological]], [[psychology|psychological]], [[sociology|social]], and [[economics|economic]] aspects of [[health]] and aging and impacts within the health-care system. |