It's for real without a doubt. In fact, this was discovered many, many years ago. My real year of birth is 1962 BC, not 1962 AD, so I'm 3966 years old. I'm living proof that this really works. /ubbthreads/images/graemlins/tongue.gif
Seriously, while there might be some validity in healthful effects from magnetic fields, I suspect a lot of those testimonials are the so-called placebo effect. The mind has a great influence over health, and you can literally think yourself sick or healthy (within limits of course). If people believe the ring works, they might have some improvement in health, but this has mostly to do with the placebo effect. What leads me to discredit most of that site is the usual coming of the messiah predictions and other religious sounding crap. If the future is already predestined as all these doomsayers seem to say, then what's the point of free will or of even living? I like to think we're a little more than chess pieces.
As for the idea of a world corporation running things, I can't say that would solve our problems any better than existing governments can. In fact, I like the idea of both large nation states and large corporations dissolving much better. The smaller and more local any governance is, the more likely it is to answer directly to the people who are being governed. Or put another way, it's very easy to do nothing or to do evil in a big company since nobody may notice. Try it in a company with a few employees and you'll stick out like a sore thumb. Smaller is better, not bigger.
I also want to add that natural magnets have existed since the Earth was formed, and have been known to man for thousands of years. If there were any health benefits at all to wearing magnets we would have known about it millenia ago and would be routinely be doing so now in much the same way sanitary practices became routine because of their health benefits. Since we don't, I can conclude with near certainty that there aren't any significant health benefits to wearing magnets. The excuse about this invention being discredited because it would put doctors out of business is simply illogical in light of this. Doctors would have ceased to be needed soon after word of magnet power spread some thousands of years ago. While I don't discredit the idea of near immortality, mankind will get there by discovered and reversing the genetic causes of aging, not by wearing magnets.