For once, i will provide you with a little bit of information. It is just an collection of information and ideas.
You may or may not believe this, it is quite controversial. The year 2012 is not the end of the world. It is more or less a gateway, a crossroad in events that occur as events pass by. Although it is common to use time, time is just a way to keep track of events that unfold and affect each other also known as history, the present and the future. The Mayan calendar is just that. Very controversial i must say indeed... But there are moments in time were events can have profound effects about what will occur in the future. The year 2012 with the according date and time, is such a crossroad of events.
Here is a controversial theory for you :
The Mayans had very precise star knowledge and knowledge about the sun.
And the sun, is important.
We all know that the sun affects our lives. The sun continuously bombards the Earth with a wide spectrum of EM radiation, solar wind of ionized particles, magnetic field lines from the sun that create these magnetic portals every 8 minutes with magnetic field lines from the Earth through magnetic reconnection . And let us not forget, gravity ripples that the sun showers us with. But still to small to measure. There is also research done that seem to suggest that atomic decay from various radioactive isotopes of elements here on earth also vary with the solar cycle.

Now in 2012 there will be a planetary alignment and what i have come to understand also a galactic alignment. A gravity modulation that might affect the core of the sun, making the sun behave a little "wild". Please take note that the galactic alignment takes place from 1980 up to 2016. 1998 seems to have been the magical year. But let us return to something more close to home. The sun.
How is life affected by all of this ?
We all know that lower life forms are affected more by the sun than humans because lower life forms are instinct driven. And that is not entirely true. Humans are just as instinct driven when compared to lower lifeforms. But when a human consciousness is made aware of such, the human mind can overrule all of these instincts. We can thus state that humans do have basic instincts and are influenced by them.
In 1915 there was a Russian scientist named Alexander Chizhevsky.
This scientist found out that there is a relation between the solarcycles and human behavior globally on average. It seems that fast changes in the geomagnetic field of earth cause certain problems. Erratic sleep patterns. Not feeling rested after enough sleep, some individuals might even experience anxiety. On average, this will make people more tired and usually a little more paranoid than usual...
Recently, another researcher named Professor Raymond Wheeler of the University of Kansas has come to the same conclusions.
How does this work ? Well, humans have a biological clock. The circadian clock. That clock does not run at exactly 24 hours as is often mentioned.
This clock is continuously reset by our daily and night pattern of life.
So far so good.
In comes the Pineal gland.
This gland controls our day and night pattern.
Magnetite, this is a material that is sensitive to outer magnetic fields.
It seems that in the sinuses of the human skull, bones can be found with magnetite in them, the ethmoid bone. It is found between the nasal cavity and the brain.
The human eye however contains Cryptochrome. A protein that is also sensitive to external magnetic fields. And this protein also plays a role in the way the circadian clock is controlled in animals. In humans however this is not proven directly but there is evidence that the eyes do influence the pineal gland indirectly through neural pathways coming from the eye.
Thus in history it can be found that when a lot of geomagnetic disturbances are happening, humans seem to start to behave more erratic and become more volatile. When there is a large scale event occurring such as drought, disease or food shortage, it is not difficult to imagine that this might be just that little nudge needed to create chaos in human society. But there is one thing i left out. All life is affected by powerful fast changes in the geomagnetic field. It is an overall effect that affects many different aspects of nature. When this all conjures negatively...
edit
Cryptochrome is also able to control gene expression.
And more recently, the amino acid glycine have been discovered to display ferroelectricity.
Ferroelectricity is a property of certain materials which possess a spontaneous electric polarization that can be reversed by the application of an external electric field.
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And that is why metaphysically speaking, the year 2012 is a crossroad of events.
http://en.wikipedia.org/wiki/Ferroelectricity
http://en.wikipedia.org/wiki/Magnetite
http://en.wikipedia.org/wiki/Magnetoreception
http://en.wikipedia.org/wiki/Ethmoid_bone
http://en.wikipedia.org/wiki/Cryptochrome
http://en.wikipedia.org/wiki/Glycine
http://en.wikipedia.org/wiki/Pineal_gland
http://en.wikipedia.org/wiki/Entrainment_(chronobiology)
http://www.bibliotecapleyades.net/esp_2012_03.htm
http://en.wikipedia.org/wiki/Alexander_Chizhevsky
http://brainguff.co.uk/2012/05/scientists-discover-solar-activity-directly-affects-human-behaviour/