Do cell phones affect kids’ sleep?

Posted under Ask the Mediatrician.

Q: My middle-schooler seems like a zombie during the day since we agreed to let her have a cell phone. What’s going on here?
A: Like most tweens and teens, your daughter probably uses her phone primarly as a platform for texting–thus, she may sleep with it on a nightstand or even under her pillow, just in case she receives…