The trouble started every day at around 3 p.m., after Cathy Higgins had spent five or six hours staring at an array of ...

Depending on your personal preferences and, of course, your mobile device's screen size, you need to adjust your FOV in Warzone Mobile so that you can play to the best of your abilities.

While people may try to mitigate the impact by adjusting screen brightness or using night mode, Mr Piper said previous studies suggested it was scrolling and engaging with a device that was likely ...