Brown fat, first found in infants and small animals, burns calories to generate calories. For a long time, it has been thought that adults do not have brown fat. However, a few years ago, scientists found that some adults still have a small amount of brown fat, while the elderly and obese people have little or no brown fat. When the temperature drops, the body turns on the expression of a series of genes, generating heat and converting white fat into brown fat, which is the first step in fat tissue [browning]. A recent small study in the human body shows that brown fat increases blood sugar metabolism, insulin sensitivity and energy consumption after slight cold exposure. Another study found Read More …