Prospects for life span extension.
Life expectancy has increased dramatically in the United States and in much of the world in recent years and decades. The factors underlying this increase are incompletely understood and are undoubtedly complex. A question that drives current research is whether life expectancy can be further extended using current knowledge of modifiable risk factors. A still more challenging research focus is on the possibility that life expectancy might be further increased through knowledge gained from studies of the basic biology of aging and its genetic and environmental modifiers.
Sierra
Felipe
F
National Institute on Aging, National Institutes of Health, Bethesda, Maryland 20892, USA.
Hadley
Evan
E
Suzman
Richard
R
Hodes
Richard
R
D004467:Economics; D006801:Humans; D008017:Life Expectancy / Q000639:trends*; D023421:Models, Animal; D012961:Sociology