One of the reasons is that our facial skin is exposed to the outside for a long time, which makes it often face the influence of wind, rain, sun and some environments. Ultraviolet rays not only make skin easy to age, but also dry indoor environment will accelerate skin aging. In cities, bad environments such as smog are also factors that promote skin aging.
The skin of the body is protected by clothes, and naturally there is an extra layer of protection than the face.
Another reason is that our facial muscles move too frequently. Raise eyebrows, blink, drink water, eat, talk, smile, cry ... facial muscles keep moving, which leads to constant skin movement. The richer the expression, the bigger and more the movements, and the easier it is to form wrinkles.
Therefore, for facial maintenance, it is best to use sunscreen isolation to protect it all year round, and don't make too many exaggerated facial expressions at ordinary times.