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FEATURE ARTICLE

Aging: A Biological Perspective

A variety of techniques extend the lives of model organisms, and similar approaches might help human beings stay healthy longer

Robert Arking

Figure 7. Oxidative stressClick to Enlarge Image

Over the past two decades the study of the biology of aging has grown from a marginally respectable practice into cutting-edge science. Today, prospects are good that within a matter of years it may be possible to significantly postpone the onset of senescence in human beings, thereby extending the healthy portion of life. The author reviews several biochemical and genetic approaches to achieving this goal, and discusses the barriers, both scientific and social, such efforts are likely to face.


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