Two-thirds of women “face confidence problem” in old age?
三分之二的女性面临自信心问题（摘自美国健康时报）
We've all heard the clichés: Wrinkles are a roadmap of your life. But many of us would rather not be reminded of the distance we've traveled. What can you do? First, understand what causes wrinkles.
我们都听说过 ：皱纹是您一生生活的路线图。 但是我们大家宁可不被提醒我们曾旅行过多远的距离。 您能做什么呢？首先，要了解产生皱纹的原因。
What Causes Wrinkles?The following factors are the most significant:
是什么导致皱纹的出现呢？以下是非常重要的几个因素：
Aging
Wrinkles are a by-product of the aging process. With age, skin cells divide more slowly, and the inner layer, called the dermis, begins to thin. The network of elastin (the protein which causes skin to stretch) and collagen fibers (the major structural proteins in the skin), which support the outer layer, loosen and unravel, causing depressions on the surface. With aging, skin also loses its elasticity, is less able to retain moisture, oil-secreting glands are less efficient and the skin is slower to heal. All of these contribute to the development of wrinkles.
年龄
皱纹是人们老化过程的副产物。 随着年龄增大，皮肤细胞分解越来越慢，并且内在皮层，称为真皮，开始变薄。 支持表皮层的弹性蛋白(蛋白质的网络造成皮肤舒展))和胶原纤维网络(在皮肤的主要结构蛋白质)，开始松懈并且解开，导致皮肤表面的消沉。随着年龄增大，肌肤也缺乏弹性，不能保持湿润，腺体分泌油脂更慢。 所有这些都是导致皱纹的发展。。
Facial Muscle Contractions?
Lines between the eyebrows (frown lines) and lines jutting from the corner of the eyes (crows feet) are believed to develop because of small muscle contractions. Smiling, frowning, squinting and other habitual facial expressions cause these wrinkles to become more prominent. Over time, the expressions coupled with gravity contribute to the formation of jowls and drooping eyelids.
面部肌肉收缩
Sun Damage?
Exposure to ultraviolet radiation can result in premature aging of skin. In different wavelengths of ultraviolet light to reach the Earth's surface UVA radiation levels up, it will invasion dermal layer, leading to skin aging, have wrinkles, mottling, and the injured skin is not easy recovery.
The ultraviolet sunrays that cause photoaging damage collagen fibers and cause the excessive production of abnormal elastin. When ultraviolet light damages skin tissue, an enzyme called metalloproteinase is produced. This enzyme creates and reforms collagen. During the process, however, some healthy collagen fibers are damaged, resulting in a disorganized formation of fibers called solar scars. Wrinkles develop when the rebuilding process occurs over and over.
阳光照射
Smoking?
Healthy skin perpetually regenerates. While old collagen is broken down and removed new collagen is produced. Researchers have found that smoke causes a marked reduction in the production of new collagen. A lack of new collagen results in the development of wrinkles.
吸烟
健康的肌肤可以永恒地再生，当老化的胶原被去除，新的胶原蛋白生产。 研究员发现烟导致新生胶原的明显减少。 缺乏新生的胶原蛋白导致皱痕的发展。
