masses age at different yard . If you went gray before all your friends , or found wrinkles creeping along your forehead in your 20s , you might already be well aware of the inequality bestow by the passage of time . But it ’s not just our appearance that changes at a vary rate . This difference in how our bodies age is measure by what ’s bang as “ biologic years . ”
Increasingly , scientist have been interestedin studying the differences between biological age and chronological years in ordination to better understand why some people age better than others . Such research can help shed igniter on thing that actually work to assist us live longer , better lives . Anda new studyfrom the University of Southern California and Yale University , published in the diary Demography , indicate that Americans might already be doing something right .
Today , we live longer exist than ever , and researchers wonder whether changes in biological years over time — rather than medical advances alone — are a factor in that . What they found hint that Americans may indeed be age more slow than they were two decade ago .
To get in at that determination , researcher looked at two information set from the National Health and Nutrition Examination Survey , one collected between 1988 and 1994 , and the other between 2007 and 2010 . Using indicator like metabolism function , inflammation , and organ affair , along with measures like level of hemoglobin and full cholesterin , they calculated biological age for people in each data ready , and compare it to chronological years . In the more late mathematical group , biological historic period was generally low-spirited for the same old age groups . The difference between the two time menses was grownup in older adult .
Some of that retardation of the age process , they concluded , was the result of change in deportment , such as a trend away from smoke .
While not a definitive take on the issue , the study make several of import point . push major wellness problems far toward the conclusion of life , of grade , would not only make for healthier people , but also rate less strain on medical and fiscal resource that deal with the sick . And the study identifies areas for succeeding investigation , including smoking and physical exercise , that might help us better translate how life style and environmental factors contribute to overall health over a lifetime .
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