Do Ereaders Really Harm Sleep? Depends What You Call an Ereader

A new study has claimed that light-emitting e-readers "negatively affect sleep, circadian timing and next-morning alertness" when used in the evening. However, those reading the resulting coverage should look into the details before worrying too much.

The study was published Monday in the Proceedings of the National Academy of Sciences (PNAS), leading to scary headlines such as: "E-readers 'damage sleep and health,' doctors warn" (BBC); "Keep That E-Reader Out of Bed and You'll Feel Better in the Morning" (Pacific Standard)