A new finding suggests that shifts in the geomagnetic field are connected to growth of the inner core. Peter Olson and Renaud Deguen of Johns Hopkins University in Baltimore, Maryland, used numerical modelling to establish that the axis of Earth’s magnetic field lies in the growing hemisphere. While one side of Earth’s solid inner core grows slightly, the other half melts.

As the Earth spins, the molten iron inside churns and flows in a fairly stable manner for millennia. For some reason during geomagnetic reversal, some instability causes an interruption to the steady generation of a global magnetic field, causing it to flip-flop between the poles. In addition to the North-South dipole, there is a weaker magnetic field spread around the planet, probably generated in the outer core of the Earth.

The magnetic field strength is currently experiencing a downward trend. Should the stronger dipole (north-south) field reduce below the magnetic field strength of this usually weaker, distributed field, a geomagnetic reversal is possible.
Researchers speculate that rapid movements of the field’s axis to the east in the last few hundred years may be a precursor to the north and south poles trading places. Earth’s magnetic field reverses direction every few thousand years, and if it happened now, we would be exposed to solar winds capable of knocking out global communications and power grids.

Seismic images of Earth’s inner core reveal an east–west dichotomy. This dichotomy has been interpreted as lopsided growth, with faster solidification on one hemisphere of the inner core boundary, and slower solidification and perhaps melting on the other. New study suggest a correlation between these shifts and reversals of Earth’s magnetic field.

more here
http://thewatchers.adorraeli.com/2012/07/18/growth-of-earths-inner-core-may-be-a-precursor-to-the-magnetic-reversal/

Well, you know when was 16 I was in a car accident. At 75 miles an hour I was in the back seat we hit
A tree, the metal part of the roof was in my head (the left side) In a coma for a month....I was on a breathing tube. To make a long story short the Drs. were so wrong! It also affected the left side of my body..... Paralyzed on the left side should have been the opposite. I did loose all of my coordination. I am fine now I know that was a long time ago, but they don't always know everything!

Oh dug, I thought your post was about the brain..... haha change ur picture lol

i'll see if i can get you some better glasses...lol

poohhh ok that's too funny!