For some people, gaming is all about getting an adrenaline rush in scenarios that are highly unlikely to occur in real life. It's the thrill, action, adventure, and suspense that keep them hooked and wanting more. However, too much action and brainwork can lead to burnout that's tough to shake off, even if it's just from playing a bunch of games. This is why, just like any other aspect of life, there should be some sort of 'wind-down' mechanism for gaming as well.