No matter how fast you try to push the jump button you just can't make it past the current screen.If this has ever happened to you don't worry you are not alone.Experts say that playing video games helps improve memory,Maths skills and patience.However,you must play sensibly or you can have health problems.Sam Oliver,for example 14 year old British boy,could play video game for hours but than he got Nintendo thumb.This happens when you make your thumb do the same action again am again like pressing a button on a games console.So when you sit on front of your computer screen ready to play your favourite game make sure you play it safe