Tag Archives: ageing

Test shows how old your body really is

Scientists say they have developed a way of testing how well, or badly, your body is ageing.

They say it could help predict when a person will die, identify those at high-risk of dementia and could affect medicine, pensions and insurance.

The team at King’s College London say looking at “biological age” is more useful than using a date of birth.

However, the work, published in Genome Biology, provides no clues as to how to slow the ageing process.

The test looks for an “ageing signature” in your body’s cells by comparing the behaviour of 150 genes.

It was developed by initially comparing 54,000 markers of gene activity in healthy, but largely sedentary, 25 and 65-year-olds and then whittling them down to a final 150.

Prof Jamie Timmons, from King’s College London, told the BBC News website: “There’s a healthy ageing signature that’s common to all our tissues, and it appears to be prognostic for a number of things including longevity and cognitive decline.

“It looks like from the age of 40 onwards you can use this to give guidance on how well an individual is ageing.”

Read more » BBC
Learn more » http://www.bbc.com/news/health-34153135

Ageing rates vary widely, says study

A study of people born within a year of each other has uncovered a huge gulf in the speed at which their bodies age.

The report, in Proceedings of the National Academy of Sciences, tracked traits such as weight, kidney function and gum health.

Some of the 38-year-olds were ageing so badly that their “biological age” was on the cusp of retirement.

The team said the next step was to discover what was affecting the pace of ageing.

The international research group followed 954 people from the same town in New Zealand who were all born in 1972-73.

The scientists looked at 18 different ageing-related traits when the group turned 26, 32 and 38 years old.

The analysis showed that at the age of 38, the people’s biological ages ranged from the late-20s to those who were nearly 60.

“They look rough, they look lacking in vitality,” said Prof Terrie Moffitt from Duke University in the US.

The study said some people had almost stopped ageing during the period of the study, while others were gaining nearly three years of biological age for every twelve months that passed.

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