The typical aging of skin tissues causes the phenomenon of depression on the surface of the skin. The obvious lines on the face often make oneself look more serious, old and unfriendly, making people feel difficult to approach. The reason: 1, skin aging sagging Undeniably, some people are born with heavier lines than others, but in general, after the age of 35, the lines will slowly deepen. In addition to genetic factors, it is mainly caused by age factors. As we grow older, the collagen and water content in the skin will gradually lose, and the subcutaneous fat will also shrink and sag, causing skin relaxation and aging, forming a depression on the surface of the skin, which will produce the lines. 2, too much expression Want to know what kind of expression your lines appear because of? It is very simple. If the lines extend from the side of the nose to the corner of the mouth, it is because you love to smile too much and formed; if the lines extend down from the corner of the mouth, it is due to frequent pursing and skimming of the mouth. 3, air pollution, computer and cell phone radiation and irregular daily routine Air pollution, computer and cell phone radiation and irregular daily routine will also accelerate the generation of lines, so to solve the problem of how to get rid of lines well we must first avoid these situations.