When he was young, Hu didn’t grow much meat after eating Hesai’s sweets, but from the age of 25, he didn’t dare to eat more and more foods, and instead he grew fat. Many studies have explored the question of why people get fat when they get old. The answer is clear: changes in body composition are the main cause of slowing metabolism. After the age of 45, the average person’s muscle mass decreases by about 10% every ten years. This is equivalent to losing 0.2-0.3 kg of muscle per year, while increasing the corresponding weight of fat.
Compared with fat, muscle of the same weight consumes more calories, so the number of calories consumed by the body decreases with age. Recently, scientists from Sweden and France published research results in the journal Nature-Medical. Although the amount of appetite does not increase and the amount of exercise does not decrease, the problem that the older you get more fat is the key to the lipid turnover rate of adipose tissue with age. Decrease (Why people gain weight as they get older? ScienceDaily, September, 2019).
The fat cells that cause obesity are like a big house filled with triglycerides, a form of human energy storage. With food intake, triglycerides enter the cell. When the body’s energy metabolism is depleted, triglycerides leave the cell. If you go out more and come in less, the volume of fat cells will decrease and people will become thinner. On the contrary, if the fat volume becomes larger, people will gain weight. Lipid turnover rate represents the storage and removal of triglycerides in fat cells.
The lower lipid turnover rate means that triglycerides are stored for longer, and weight is easier to gain. It also means that “eating less” and “exercising” are difficult to prevent weight gain.
The researchers first surveyed 54 adult men and women for an average of 13 years. It was found that 77% of the participants’ fat was “older” than at the beginning of the study, meaning that the body’s rate of removing fat decreased. Participants who did not reduce their caloric intake under the declining lipid turnover rate increased their weight by about 20% on average. The researchers also surveyed 41 women who had undergone bariatric surgery, with an average study time of 5 years. The results showed that those with the lowest lipid turnover rate maintained their weight the best after bariatric surgery, while participants with higher lipid turnover rates had more weight gains after a few years. The lipid turnover rate of people who maintain a good weight is increasing; while those who have rebounded weight, the lipid turnover rate is decreasing.
Professor Peter Arner said: “Our research shows that the turnover of fat lipids is an important and independent regulator. This may lead to a new way of obesity treatment.” So if you want to deal with the lipid turnover rate with age The problem of decline requires the development of corresponding treatment and lifestyle strategies. For example, increasing intake of trace elements that can accelerate fat metabolism, chromium is one of them.
Unlike the high-priced chromium used in industry, the chromium of the human body is trivalent chromium (Cr3). Trivalent chromium is an essential trace element for the human body. It affects the metabolism of sugar, protein, fat and nucleic acid by regulating the function of insulin, and has a beneficial regulation and improvement effect on lipid metabolism. Chromium can reduce the content of serum triglycerides and total cholesterol, and increase the content of good cholesterol. The daily requirement is 20-50 micrograms for normal adults, 50-110 micrograms for pregnant women and the elderly, and 50-200 micrograms for diabetic and obese people. Chromium comes from eggs, liver, apple peels, bananas, beef, flour, chicken and potatoes. Middle-aged and elderly people should ensure that they consume enough chromium to increase lipid turnover, which is conducive to the prevention of obesity and weight loss.
