隔着玻璃晒太阳 变老7年没问题

      Glass does block out the sun's UVB rays, but about 50 percent of UVA rays, associated with burning and ageing, do get through. Leading dermatologists and photobiologists warn that daily exposure to ultraviolet rays means the skin can age more than twice as quickly as skin that is protected. There will be more lines and wrinkles, and these will be much deeper around the eyes, nose and mouth.

　　玻璃确实能阻挡太阳光中的中波紫外线，但却无法抵挡50%的长波紫外线（正是这种紫外线催生了燃烧和老龄化）穿堂入室。著名皮肤病学家以及光生物学家警告人们，经常暴露于紫外线下意味着皮肤的老化速度比被保护时要快两倍。届时脸上会有更多沟壑褶皱，而眼睛、鼻子和嘴巴周围的纹路会深得多。