皱纹是在皮肤上形成的皱褶。它虽不是什么疾患,但常会给人带来面镜兴叹之忧。有人在20岁左右额头便出现了皱纹,俗称抬头皱,抬头皱多由习惯和环境引起,多见于运动员、海员、农民等户外劳作的人们。一般来说,人过25岁,由于生长发育期渐过,面部会开始出现细小的皱纹,但还不明显,但到30-40岁时皱纹就特别明显,并逐渐增多。这是由于面部表情变化天长日久而致的结果。所以也有人说皱纹是岁月在面部留下的痕迹。 Wrinkles are wrinkles that form on the skin. Although it is not a disease, but often give people the feeling of disappointment. Some people in the 20-year-old appeared on the forehead wrinkles, commonly known as wrinkled, wrinkled and more caused by habits and the environment, more common in athletes, seafarers, peasants and other outdoor work people. In general, people over the age of 25, due to the gradual growth and development period, the face will begin to appear small wrinkles, but not obvious, but by the age of 30-40 wrinkles are particularly evident, and gradually increased. This is the result of changing facial expressions over time. So some people say that wrinkles are traces of the years left on the face.