"Avoid screens before bed" is one of the most common pieces of sleep advice. But what if the real problem isn't screen time—it's the way we use social media at night?

Rick Grimes and his group wander around in one of the best horror TV shows to look for a safe place to stay. While doing that ...

Research suggests that how often people check social media − and how emotionally engaged they are with it − can influence sleep even more than how much time they spend online.