Déjà vu is a bit of a mystery. Experts aren’t sure what causes the sensation of having experienced something before, but they have some compelling theories. “Déjà vu” describes the uncanny sensation ...

Have you ever found yourself in a moment so uncannily familiar that it sends shivers down your spine? That eerie feeling of being sure you’ve experienced something before, even when logic insists ...

A few days ago, I was visiting a new coffee shop in an unfamiliar neighborhood. In line to place my order, a polite stranger in front turned around, nodded at me, and said, "Hello." In that otherwise ...

Have you ever had the sense that you’ve done something or gone through a new situation before? Does it seem like you know what’s going to happen next? That feeling is often described as déjà vu, which ...