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, ...

Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. This article is more than 2 years old. Science has discovered a new mental ...

Have you ever been so absorbed in an activity that time just seemed to melt away? When you’re deeply focused on a challenging task that you have enough skill to complete and the activity is rewarding ...