The immobility induced by laziness would have a mechanical impact on the composition of our fat cells, adipocytes. The absence of activity would increase their rigidity. Under the effect of laziness, they would therefore develop faster and form more fat, according to the results of a study published in the specialized journal Biophysical Journal.
Sedentary lifestyle increases the development of fat cells
Scientists at Tel Aviv University have put their research into the laboratory to understand the link between a sedentary lifestyle and the accumulation of fat cells.
“Previous research has suggested that cyclic stretching or vibration helps prevent fat cell formation while prolonged immobility and mechanical stress promotes lipid production in fat cells,” the researchers explain.
Scientists were able, using atomic force microscopy and interferometric microscopy techniques, to calculate the effective stiffness in the cell nucleus and around the cell, of lipid droplets, and then the distribution of this stiffness in the cell.
They found that stillness contributes to the development of fat cells.
“Although this study was not conducted on humans, it provides a mechanical explanation for the accumulation of fat with sedentary lifestyle. It provides additional motivation to practice regular physical activity and reduce sedentary lifestyle for prolonged periods ”conclude the researchers and authors of the study.
Engage in physical activity to stay healthy
To keep fit and preserve his health, the World Health Organization (WHO) recommends taking 10,000 steps a day. The benefits of physical activity are indeed scientifically proven. Regular sport can reduce the risk of developing breast cancer by up to 39%, the risk of developing colorectal cancer by 26%, the risk of having a stroke by 25% and the risk of diabetes is 34%. Sedentary lifestyle is today the 4th risk factor for mortality in the world after high blood pressure, smoking and diabetes.
