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, ...

I am going to try a magic trick. This column is going to try to meld four things — Rickey Henderson, a barista, my trainer and Adelaide Bry (mother of my wife). Pick a card, any card. Henderson died a ...

Talking to yourself isn’t just normal; it’s extremely common and often beneficial. When your self-talk is positive, it helps process thoughts, regulate emotions, motivate actions, and boost ...

If you’ve ever woken up to your partner laughing about something you said in your sleep, you’re not alone. Sleep talking—also known as somniloquy—is a common sleep behavior that can range from ...

When we see someone talking to themselves in public, it’s easy to pass quick judgments. People may be embarrassed to be caught talking to themselves, but it’s completely normal. In fact, there are ...