It has a somewhat poor grammatical structure at some points, and definately isn't formulated in a way that any science major or professional would have presented it. Overall the information seems mostly accurate, while a few points seem to be based on assumption/popular opinion. There's no sources referrencesd, it's not put together as a proper scientific article, and the terminology is definately not that of someone experienced in medicine or biology. I'd say the the author is non other than the infamous Joe Schmo, the guy who knows pretty much nothing beyond popular opinion.