Is your smartphone a permanent accessory on your nightstand? If you’re consistently checking your phone or tablets as you lay in bed, right before you try to fall asleep, you’re not doing your brain or body any favors at all. There are decidedly negative effects that occur when your smartphone screen is the last thing your eyes see before sleeping. Dr. Dan Siegel, clinical professor of psychiatry at the UCLA School of Medicine, sheds some light on why:

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