This does not mean that all artists are left-handed and all accountants are right-handed. There are many exceptions. Some right-handers have a strong right brain, and some left-handers have a strong left brain. The best thing would be to use both right and left sides of the brain. There are people who learn to do two thing at the same time. They can answer practical questions on the telephon (which uses the left brain) and at the same time play the piano (which uses thr right brain), but this is not easy to do!