隔着玻璃晒太阳 变老7年没问题

　　It's a well-known fact that shunning the sunscreen and basking in direct sun leads to wrinkles. But those who thought their skin was shielded while driving, or sitting in a conservatory, could be in for a nasty surprise。

　　The damage caused by sun coming through glass can be so dramatic that, over time, the side of the face exposed to the rays can end up looking up to seven years older than the other. Even a few hours sitting in a car during April results in skin damage, according to a study. The sun's ageing effects during autumn months are also far worse than previously realized, it found。

　　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。

　　A team at University College Hospital, Besancon, in France, conducted the first study on how sections of the face age at different rates related to sun exposure. They demonstrated that a woman office worker or regular driver will age more quickly on the side where the skin faces the sun and heat - even through glass。

　　Another study, by skin experts at Boots, found even a few hours sitting in a car in April resulted in skin damage linked to ageing. Signs can include dark spots, wrinkles, droopy and leathery skin and broken blood vessels。