All people have two brains which operate somewhat independently of one another.
The left brain , in general, is more verbal than the right brain . It is also better trained in the educational process. For most people, the left brain is far stronger than the right brain. The right brain is, however, necessary for creativity and originality, thus it is hard to do much writing without it. The left and right brain not only do separate things, they can interfere with each other if you try to do incompatible things all at once.