Speaking for myself it seems like the connection is very weak, and it's being spun for political reasons. Anti-gaming politics are also obviously why this is getting international exposure, when while sad, it's hardly noteworthy beyond a local level.
If the guy died at a bar or nightclub they hung out at or whatever, the incident wouldn't have gotten this amount of attention. Millions of people will spend 12 hours or more a day at a bar chatting and drinking, and many will die on barroom floors, yet you don't see any serious movements right now based around it.
I've done many 12 hour gaming sessions, and even not eaten for a day or so at the most extreme, and the behavior has hardly been lethal. This is to say nothing of some weekend long paper and pencil RPG sessions when I was younger.
To be entirely honest, the article even mentions that the guy got up to go home and get a meal at home. That isn't "problem addict" behavior since he was apparently looking after his own needs. What's more consider that people sit in front of computers for 8-12 hours a day professionally without gaming, cubical jockies and code monkeys in paticular.
I think reasons unrelated to gaming will be discovered here, however I doubt those reasons will be given the press circulation that the incident itself is being given, leaving things as they are here helps make the point of the people who circulated the article on this level to begin with.
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One thing I will point out is that I *HAVE* seen people addicted to activities like this having medical problems because of it. I used to work at the casinos down here (as Security) and I have seen people collapse while playing slot machines for crazy amounts of time. I could say come in for a shift 2-3 days in a row at times and see the same guy at a machine like a piece of the furniture. I've also seen people literally go to the bathroom in their pants so as not to leave a machine, or because they didn't want to leave a gaming table.
This kind of addiction DOES exist, and that's why it can be scary to make the connection to something like video gaming which is viewed as being far more 'casual' and 'safer' than gambling. The thing is though that in these cases the person wouldn't have taken the break mentioned, and it's likely that the person would run into problems from dehydration first rather than exhaustion because forgetting to drink (or not wanting to take the time) seems to be the biggest culprit when it comes to such collapses. A real addict like that is going to be turning away offers of drink from waitresses and such, and probably also going to have soiled themselves, probably multiple times, before such an incident. The description here doesn't really jibe with what I've personally witnessed. Regular 12 hour binges can cause all kinds of problems on their own, but won't have this kind of effect. 12 hours just isn't enough, especially when the guy apparently DID take at least one break.