At this point, we’re all but convinced that our smartphones are out to kill us. Another nail in our coffin comes from a study that claims using your Dots-equipped device before bed can make you feel “hungover” the next day. According to researchers from Michigan State University, people who used their phones for business purposes after 9 P.M. saw their energy and productivity levels decrease the next day partly because the phone’s blue light messes with their melatonin levels.
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