Just a little note : We all do stuff for more than 12 hours a day, if you sleep 8 hours, you actually do at least 16 hours of whatever in a day. Doesn't have to be the exact same activity, even if it is, it's not 12-14-20 straight hours of video game that would kill someone. Also the young man went for a quick meal home and collapsed few hours later. Actually, they don't even know what killed him.
Someone would cross the door of a casino and die there an hour after, media gonna say he was a compulsive gambler who probably died after losing all his money, house, car and family... and might have poisoned himself in a suicide attempt.