While you bake in your lounge chair, ultraviolet light from the sun zaps through your skin and kills living cells that normally work to help make new skin.

• 当你在躺椅里晒太阳的时候，阳光中的紫外线穿透你的皮肤，杀伤正常状态下帮助你皮肤更新的活细胞。