Free radicals, linked to rapid aging, are highly reactive with other molecules, including vital DNA and proteins, the destruction of which can damage or kill cells.
与迅速衰老相关联的自由基很容易与包括维持生命所必需的DNA和蛋白质发生反应，而破坏这些DNA和蛋白质，就可能会损伤或杀死细胞。
Light hitting the proteins produces a pair of free radicals, highly reactive molecules with unpaired electrons.
光击中这种蛋白质产生一对游离的活性基，这是一种非常活跃的有着不成对的电子的分子。
These rogue oxygen atoms can remain on their own or combine with hydrogen atoms to form reactive oxygen species (ROS), which wreak havoc with enzymes and proteins and adversely affect cell function.
这些游离的氧原子能维持它们自己的形式或者和氢原子联合成活性氧(ROS)，ROS能被酶和蛋白分解可逆性影响细胞功能。
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