Why do people have double chins when they are not overweight

With the increase of body weight, the human body will gradually form a double chin, which is very serious for women who love beauty. However, many women, even though their bodies are very thin and small, still have double chins, which makes them very confused and do not know how to eliminate them. In fact, the appearance of any symptoms has a reason. Let's take a look at why people have double chins if they are not overweight? Firstly, why do people have double chins when they are not overweight? accumulation of adipose tissue in the chin. The accumulation of adipose tissue in the chin can be said to be the most direct cause of the formation of a double chin, which is also the reason why many overweight friends often see a double chin. Skin aging and relaxation combined with gravity. As people age, especially from the age of 25, collagen and elastin naturally decrease due to the aging process, and the skin's support and elasticity also decrease. Many even thin friends may experience double chin. Secondly, workers who have few facial expressions, dislike chewing, and have to bow their heads for a long time when eating. From the perspective of muscle relaxation, friends with less facial expressions, less chewing habits, or poor lifestyle habits are particularly prone to developing a double chin. On the contrary, appropriate facial muscle movement can effectively prevent this phenomenon. Thirdly, genetic factors. Double chin is a strong genetic factor, and many young people's double chin is often related to Yinchuan Yisu. Round face shape. People with round faces are more likely to have a double chin due to the less distinct lines of their chin and cheekbones, as well as a lower degree of skin bone fit compared to other face shapes. Why do people have double chins when they are not fat? Long term incorrect posture in daily life can also lead to double chin. This situation is more typical when sitting for a long time, arching the back, or sleeping with a pillow that is too high, causing the chin to be below the horizontal line, and fat to transfer from one direction for a long time, forming a double chin. The appearance of double chin is closely related to the relaxation of facial expression muscles, as well as the muscles in the mouth and cheeks. This muscle group is related to the movement of the chin, and once relaxed and sagging, it is easy to form a double chin.