There’s still so much we don’t know about the human mind, especially the unconscious part. Where do dreams come from? Why do ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

Sleep talking has long been considered a harmless, even amusing habit. But new research indicates that the disorder should be taken more seriously, as it could be an early sign of severe underlying ...