Second Life applications in public health

I was doing some research in possible applications of second life media technology, and sincerely I was struck by the potential of second life in education. Here is an advertising video on possible applications of second life in public health done by University of Michigan. According to them, "an active public health community is simulating disaster scenarios, creating interactive health games, offering people with disabilities a place for support and social networking, and providing a space for professionals to view presentations and attend international conferences". I imagine how much second life is going to be used in universities as a learning tool in diverse disciplines. The only problem is people getting disabilities for staying in front of computer too much leaving their second lives, sometimes more than their "first lives", real ones or the carbon physical world that Arturo mentions.