We think of them as the sign of a slow mind, or verbal tics, but do these grunts actually serve a purpose, or even stand in for a useful mental function? Some people think so.
We all know that thinking ahead is the only way to succeed in life. But a ton of new research shows that the more you think about future goals and events, the more mistakes you're likely to make. So how can you make forward-looking plans in a way that maximizes your chances of winning out?