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Reading in poor light ruins your eyes

It’s the commonsense refrain of mothers everywhere—reading under the covers or by moonlight will ruin your eyesight.

The Truth: “Reading in dim light can strain your eyes,” Snyderman explains. “You tend to squint, and that can give you a headache. But you won’t do any permanent damage, except maybe cause crow’s-feet.” Your overtired eyes can get dry and achy, and may even make your vision seem less clear, but a good night’s rest will help your peepers recover just fine.

Next: Coffee’s really bad for you