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Crib notes: Video games, playground rules and lying

Mike Derer / AP

The best in parenting news and blogs from around the web:

Video games won't hurt you, but visiting the dentist might? No, this was not written by a teenager. One study shows that video games don't harm kids, while a New York Times investigation finds that dentists might be over-exposing kids to radiation.

Play nice: Top 10 playground rules for parents. Rule No. 1, don't bring your kid to the playground and then freak out about them getting dirty. That's what they do!

Holiday meal as aerobic exercise: Five tips for surviving Thanksgiving with toddlers.

Sad dads: New fathers (as many as 10 percent) get post-partum depression, too.

I did not chop down that cherry tree: How to cope when your child lies.