4 ms·bad study. they don't account for the mental toll induced by lack of sleep. source: myself.by dmead 13y agobad study. they don't account for the mental toll induced by lack of sleep. source: myself.Sagat 13y agoI've also noticed from personal experience that playing video games for long lengths of time reduces your ability to concentrate on real world tasks or simple things such as reading.dmead 13y agoyes.