Six-time USA Memory champion Nelson Dellis has memorized hundreds of digits of pi. He has tips for how to improve your memory.

Each one is an interruption, and over the course of a day, they continuously nudge you to pick up your phone. So, get rid of them. On an iPhone, go to Settings > Notifications, select an app, and ...

The ideal way to recreate the glamBOT look is with an extra set of hands. While recording in slow motion, the person with the phone moves toward the person posing while slowly zooming in on the screen ...