Caesareans are of course part of the overall tilt toward "heroic surgery" that makes the surgeon, the hospital, and the pharmaceutical companies more money than they are able to resist. C-sections used to be rare before medicine went industrial, and are still rare in countries where medical services are offered for free. They were basically reserved for life-and-death situations (e.g. a sideways-positioned fetus too big to safely perform the external turn, and the like).
The process of natural birth is, among other things, a set of sequential commands to the baby's assorted systems -- turn this on, turn this off, our metabolism is getting rearranged to enter a different world. A Caesarean birth cancels a whole bunch of these programs. All basic functions have to be allocated to secondary back-up systems -- this, speaking of physiology alone. Psychological impact of such birth would require thousands of years of study -- Caesar's will to "drastically rearrange the world without allowing for any smooth transitions and adjustments" was born at that moment, when his world was drastically rearranged in this manner. This is imprinting -- something bigger than nature and nurture combined.
As for the hypnic-jerk, when I was little I was told it happens when you grow in your sleep. What do you think of this peculiar idea?
That last- I think that was a thing to say to a young person so they could get back to sleep!
Yes, you nailed one of my characteristics- ready to "drastically rearrange the world without allowing for any smooth transitions and adjustments".
I recall now the words of John Upledger: he mentioned the sudden release of pressure in a Cesarean birth as possibly damaging; ah, yes:
'I was surprised during my early work to see the strong positive correlation between the presence of significant craniosacral system dysfunctions and delivery by Cesarean section. It was quite puzzling, until I remembered occasions during C-sections when I saw amniotic fluid spout up into the air a few inches as the incision was made into the uterus. This suggests the sudden reduction of pressure inside the uterus where the child has been living for the past nine months. Fetal physiology could be severely challenged by this sudden change in pressure. It seems comparable to a scuba diver surfacing too rapidly and suffering the "bends."' (from here)
Question becomes is it possible to correct these injustices to the craniosacral system, through an internal practice, and I suppose most of us on Tao Bums are hoping that this and other maladies may be resolved in such a fashion.
In some, it's just overall poor perceptions of their own body, any part thereof. Some parts are neglected habitually and people spend a lifetime unaware of their existence. (How's your left ear feeling right now? What about your right middle toe?) This is cultural/poor-habitual/developmental, you name it, chiefly developmental. Infants of the tribes that carry their babies on the mother's -- sometimes father's -- body at all times in the first year and quite often, on and off, till the age of 8, do not grow up to ever have this problem, and are far more agile and coordinated from the early age. And the great felines grow up completely brain damaged if the mother does not drag them around by the nape of the neck in kittenhood. There was a zoo guy who managed to prove this and make it mandatory to drag those kittens being raised by humans in this manner, on a daily basis, so they don't miss out on this crucial developmental stage. Has to do with the body learning and internalizing the workings of gravity, motion, inertia, etc. -- the kinesthetics of our world and its own relation to them, dimensions, sensory parameters, etc..
Hey, Taomeow, how about Cesaereans?
Wow, checking Wikipedia: "The rate has increased in the United States, to 33% of all births in 2012, up from 21% in 1996. Across Europe, there are differences between countries: in Italy the Caesarean section rate is 40%, while in the Nordic countries it is 14%."
I'm thinking about the lion cubs being dragged. I think the ilio-sacral ligaments go through a number in a normal birth, and maybe it's a teaching to the new born.
There is another angle to take on people's reticence to move lower, and their eagerness to move higher. The mechanism of support for the 4th and 5th lumbar vertebrae against the shear force of the weight of the upper body is subtle and to some extent requires the induction of trance to be successfully realized. The hypnic-jerk phenomena, which is experienced regularly by about 70% of people, may be an expression of the reluctance people have to relinquish volitive control:
"Nobody knows for sure what causes them," explains psychologist Tom Stafford at BBC Future, "but to me they represent the side effects of a hidden battle for control in the brain that happens each night on the cusp between wakefulness and dreams."