I am currently the Scientific Director of the National Institute on Aging. I am both an epidemiologist and geriatrician. My area of focus is on the disablement process in all of its multi-faceted aspects but especially the decline of physical function and mobility. Over the last 20 years, I have participated in designing, consolidating, analyzing, and publishing results from some of the largest epidemiological studies on aging performed in the United States and Europe. My current interest is studying the aging phenotypes, including changes in body composition, energetics, and use dysregulation and neurodegeneration as causes of frailty.
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