14/05/2014
It is believed that if the left side of your brain is dominant is likely to use his right hand and if you have a dominant right brain, are more prone to left. However, in 70% of left-handers is also dominant left hemisphere.
Throughout history there have been several outrages under the false belief that they were possessed by the devil, they were more likely to commit crimes and countless more myths. So you had to "re-educate" children 'deviant'.
It is curious that there is an index of handedness between 10% and 12% of the population in all countries, but even more curious is that in Japan 2% of the population is left-handed. It is believed that the reason is a prohibited use of the left hand.