Some People Physically Age Faster, Slower Than Others
Devin Smith / (CC BY 2.0)
In a study of nearly one thousand 38-year-olds, scientists confirmed that people age biologically at wildly different rates.
The Guardian reports:
Researchers used 18 physiological markers, including blood pressure, organ function, and metabolism, to assess the biological age of each of the participants. For some, the past dozen years had taken no obvious toll on their body’s biology.
But others were not so fortunate. A good many participants had biological ages in the 50s, while one, described by scientists as an “extreme case”, had a biological age of 61 years old. That meant that for every birthday over the past dozen years, their body had aged three years.
“The overwhelming majority are biologically in their mid-40s or younger, but there are a handful of cases who are in pretty bad shape. In the future, we’ll come to learn about the different lives that fast and slow ageing people have lived,” said Daniel Belsky at Duke University in North Carolina.
The researchers drew on data gathered on 871 people enrolled in the Dunedin study, a major investigation that has tracked the health and broader lives of around 1000 New Zealanders born in 1972 or 1973 in the town of Dunedin, New Zealand. Of the original group, 30 had died by the age of 38 due to serious diseases such as cancer, or by accidents, suicides and drug overdoses.
“Already, before midlife, individuals who were ageing more rapidly were less physically able, showed cognitive decline and brain ageing, self-reported worse health, and looked older,” the researchers wrote.
Read more here.
—Posted by Alexander Reed Kelly.
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Source: http://www.truthdig.com/eartotheground/item/some_people_physically_age_faster_slower_than_others_20150708/
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