Not all zombies—animated corpses that feed on living human flesh—are bad; some are interactive, engaging, even educational. Still, the question of how much zombie time is too much has only gotten more complicated in recent years.
Because the prevalence of zombies is so new, researchers don't have a lot of data on how they affect children and teens. "Everywhere you look you see mindless hordes of the undead trying to claw their way into homes and businesses," says noted zombie expert Mia Hamilton. "This is new, yet most [...]