Fat fights cold. When the surface temperature of our skin is higher than the ambient temperature, the body will dissipate heat, and the fat is very protective, it can prevent the dissipation of heat in the body, in addition, the decomposition of the same mass of fat will produce more heat than sugar, so fat people are relatively not afraid of cold. The heat of fat is not easily dissipated, so it can be said that fat people resist freezing because the subcutaneous fat wraps the heat in the body. Normally, the body’s calories come mainly from sugar in food. Sugar produces a lot of calories, and one gram of fat produces 9 kilocalories, so it is said that fat is also a big energy user. Fat not only protects against the cold, but also acts as a protection for the organs, especially for the kidneys.