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don't know much about it, but it's spreading like wildfire in my work. seems like a highly intense workout over a short period of time. seems like a good recipe to get ripped and see results quickly.
i drive by a crossfit place by fenway and see some people doing pullups with really bad form. looks like they're going to throw their backs out. a really weird dude i went to high school with does it competetively too, so that's another strike against crossfit for me.
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