Your weight essentially relies on your net calories. However, many other factors influence this formula, whether directly or indirectly, including the process of ageing. Although numerous studies have examined the influence of activity levels, nutrition, genetics, and other factors on lowering or maintaining weight throughout aging. the exact causes of age-related weight gain remain under debate. According to some studies, genetics, unfortunately, play a large part in the process of age-related weight gain and may result from evolutionary survival mechanisms. However, other studies found that certain modifiable lifestyle factors, such as poor diet and lack of exercise, contribute to or can exacerbate age-related weight gain. It’s a fact as people age, it becomes harder for them to keep their weight in check.
According to the Research:
Researchers have found that lipid turnover in fat tissue decreases during ageing and makes it easier to gain weight, even if we don’t eat more or exercise less than before. “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,” said study author Peter Arner, Professor at Karolinska Institute in Sweden.
According to the Study:
For the study published in the journal Nature Medicine, the research team examined the fat cells in 54 men and women over an average period of 13 years. In that time, all subjects, regardless of whether they gained or lost weight, showed a decrease in lipid turnover in the fat tissue, that is the rate at which lipid in the fat cells is removed and stored. Those who didn’t compensate for the decrease by eating fewer calories gained weight by an average of 20 percent, according to the study. The researchers also examined lipid turnover in 41 women who underwent bariatric surgery and how the lipid turnover rate affected their ability to keep the weight off four to seven years after surgery. The result showed that only those who had a low rate before the surgery managed to increase their lipid turnover and maintain their weight loss. The researchers believe these people may have had more room to increase their lipid turnover than those who already had a high-level pre-surgery.
“Obesity and obesity-related diseases have become a global problem,” says Kirsty Spalding, a senior researcher at the Department of Cell and Molecular Biology at Karolinska Institute and another of the study’s main authors. “Understanding lipid dynamics and what regulates the size of the fat mass in humans have never been more relevant.”