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Scientists reveal why people gain weight with age - even if they don't eat more

Mirror logo Mirror 5 days ago Shivali Best

Overweight, Medical Exam, Dieting, Waistline, Nutritionist © Getty Overweight, Medical Exam, Dieting, Waistline, Nutritionist It’s a struggle that many people face as the years go by, and now scientists have revealed why people gain weight as they age.

Researchers from the Karolinska Institute in Sweden found that lipid turnover in the fat tissues - the rate at which fat cells are removed and stored - decreases during ageing.

This makes it easier to gain weight, even if you don’t eat more or exercise less than usual.

In the study, the researchers studied the fat cells in 54 men and women, over an average period of 13 years.

a close up of a person © Getty Images Their analysis revealed that all 54 participants showed decreases in lipid turnover in the fat tissues.

And participants who didn’t compensate for this by eating less calories gained weight by an average of 20%.

The researchers also looked at 41 women who underwent bariatric surgery, to see how their lipid turnover changed.

The results revealed that only those who had a low lipid turnover rate before surgery managed to maintain their weight loss.

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Professor Peter Arner, an author of the study, said: “The results indicate for the first time that processes in our fat tissue regulate changes in body weight during ageing in a way that is independent of other factors. This could open up new ways to treat obesity.”

Previous studies have shown that one way to speed up lipid turnover is to exercise more, indicating that physical activity could be the key to keeping weight off with age.

Kirsty Spalding, another of the study’s main authors, added: “Obesity and obesity-related diseases have become a global problem.

”Understanding lipid dynamics and what regulates the size of the fat mass in humans has never been more relevant."

Gallery: 50 Worst Habits For Belly Fat (Eat This, Not That!)

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