Social Welfare, Aging and Social Theory explores how we can understand the changing relationship between social welfare and human aging. The book begins by reviewing how historical changes in society impacted on shaping emergence of scientific approaches to understand and problematize and bio-medicalize aging as akin to an illness and disease. The discussion moves to trace how particular social science theories were developed to reinforce negative perceptions of aging. The book also develops its own reflexive approach with in-depth examples of social welfare in national, international and global contexts in how aging is theorized in the postmodern world were alternative possibilities can be encountered.