For millennia, humans have pondered the enigma of dreams. While science has advanced, the exact purpose remains elusive.

In France, some people believe that eating cheese before bed will give you wild dreams. But science is pointing somewhere else: the content of our dreams seems to be shaped by a mix of personality and ...

Here’s what you’ll learn when you read this story: Far from being videos of our lives that are replayed in sleep, dreams are actually interpretations of what we experience in the waking world.