In Video Games
In video games with the concept of insanity it is often represented by a meter though it can be simply represented by what happens on the screen. Often when the sanity meter goes down it starts to decrease the health bar until the player is dead if this is neglected. The sanity meter must be kept high at all times in order to stop the character from being harmed. The most famous game for the sanity meter is Eternal Darkness: Sanity's Requiem.