Pokemon Go isn't the problem, if it gets gamers in the fresh air..great! It's the way you hold the phone when you're playing! The pressure you exert on your nerves, discs, joint spaces and the little bones on the sides of your vertebrae when you look down towards your computer devices, iPads, book or newspaper is huge! This can lead to headaches, pins & needles, and tension in the neck & shoulders. So, head's up for heads up!