This is all just my two-cents worth stuff written here. It may be a little "woo-woo" for some of you. 
murphy,
First off, I'm not talking at you here, I'm talking with you, from my point of view... hence the woo-woo. 
The "body," whether a spined or spineless body, is but a shell, it's what brings that body to life that creates the "complexity."
If I was a worm, and happy to be a worm, have chosen a worms life, living in the dirt rooting around for microscopic nutrients, "dancing" the circle of life jig... arrggghh, muddy all the time, ugh! and GACK!, slimey all the time, then sure, I would think humans are insane just because of their complexity of physical form, as if they have no other choice to be otherwise. But, along with a big influence of "this is just where I'm at" on the "soul evolution train," I much prefer chocolate and pie and pasta to eat. And crab. Lots of crab.
Living in a complex organism with the possibility of god knows what going wrong must've seemed worth it at the time I decided to come to life. Not to trivialize that choice for/by using a worm comparison, but who's to say worms don't get sick, aren't born with deformities, genetic rifts, we know they die. Who's to say in their wormie 'lil consciousnesses they also don't wish someone would take care of what ails them? No offense to any worms out there, mind you. 
It's not only food that is enjoyed through our choice of physical complexity: there is Art, and the power to learn, and fellowship, and physical pleasure (oui-la-la!), and Literature, there are gyroscopes FCOL!, a whole host of awesome activities to fill our senses with wonder... in my perspective, these things are far more plentiful than are my health issues, and I have/had a few, the E-B virus for one (it's not fun, though in remission for months now). My perspective helps me to balance my understanding of whatever illness or back and neck pain I contend with, with the whole of the rest of my life.
It's like what cameron said, though I'm not sure what I mean is what he meant, hopefully I don't malign your statement cameron--
...all the complexity you mention may be quite simple to another.
It's true murph, at some time we all must come to terms with our own complexity, and then transition this reality tryin' or not tryin' to do so... gosh, my heart to yours here chum, if even I may call you chum?
Whatever you find in this life that does bring you joy?, embrace it, make yourself all about that. This really helps when you're just plain ole sick and %#?*in' tired of overwhelming life conditions. And forgive me if I've stepped over a line of privacy, mine is an extended gesture of fellowship, I relate to you. I think I may understand your frustration.
As for the medical institution many like to complain about--and I have complained also, I have not a stitch of medical insurance coverage, and for one who is 45 and loves cream and breaks out in hives at the thought of a gym, this is disconcerting--it's a "Face the Nation" gig, this is just the way it works in the good ole U.S. of A.... Face it. It's almost like the system "thumbs its nose" at those unserved in the healthcare margins saying "put up or shut up." "Putting up" being about money and privilege, or just the good fortune to have a great employer who actually sees the beauty in healthy employees. The "shut up" part is self-evident.
But for me, I found my complaining and listening to others complaining was working to give mine and theirs energy/power away to an inorganic infrastructure, incapable of ignorance or insight, that isn't going to change the quality of life for me, or you. Remember, like much else in our country--what isn't serving one group is serving another, and this is how convolution of inherent social-need arises... they call it democracy. Others call it capitalism. I call it a big mess.
I'm not sure murphy, did I actually say anything about your question--
What is it about people (Westerners in particular?) that they're so turned on by complexity and/or jargon?
Or did I just exemplify what you were talking about? 
And now for everybody, especially those with viral health issues, and those who give consideration to channeled material... that pretty much narrows the field--
Before I sign off here I want to offer this piece of info the C's transmissioned in a channeling session from 2002, I think in the springtime it was, I didn't write the date down. I had asked them about the Epstein-Barr Virus and they said--
Viruses make inroads only when there exists gaps in consciousness. A full field of awareness closes the gaps. Heal the soul by means of increased knowledge which leads to DNA modification which closes gaps.
Trust me, I know from experience, if you try to relate this to one with AIDS they're likely to think you're an idiot for it's oversimplification, yet there is food for thought in the message. Indeed, it is a "hard pill to swallow," what they say, that it's up to me to "cure" myself of the E-B Virus, but who else is going to? As far as we know viruses are incurable by standard medical practices.
--V
Today's mighty oak is just yesterday's nut that held its ground.
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Life may not be the party we hoped for, but while we're here we might as well dance.
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If you spin around on your chair really fast, things around here will make a lot more sense.
