3 It Can Be Too Late to Start Wearing Sunscreen. 想要开始涂防晒霜时可能为时已晚。

The cumulative effect of the sun's rays causes a multitude of damage to skin, but it's never too late to start protecting skin from the sun. There is clinical evidence that once you start protecting the skin, it has the ability to repair itself. This repair is not going to happen overmight; it's a gradual process that can take a couple years to yield significant results. Do your skin a favour and start the day with a layer of sunscreen. And remember to wear sunscreen during the winter. Just because you don't feel the sun's rays, doesn't mean its harmful UVA and UVB rays are not penetrating your skin. If you can see shadows, you need to protect your skin.
日积月累的日晒会对皮肤造成严重损害，但是什么时候开始让皮肤避免日晒都不晚。临床证明，一旦你开始保护你的皮肤，它就拥有了自我修复能力。这种修复不会在一夜之间发生；它是一个循序渐进的过程，可能需要几年时间才产生显著效果。帮帮你的皮肤吧，涂上一层防晒霜再开始一天的生活。此外，在冬天也要记得涂防晒霜。就因为你感觉不到阳光，并不意味着有害的紫外线A和紫外线B不会渗透到你的皮肤中。如果你可以看到影子，你就需要保护你的皮肤。