The human brain has two halves, or hemispheres: the left
and the right. It is now commonly accepted and understood
that the left hemisphere governs activity in the right side of
the body and the right hemisphere governs activity in the left
side of the body. This may explain why tests show that I am
right-brain dominant: I’m a left-hander at most activities. I
write and throw with my left hand and I kick a ball with my
left foot (and I was my school soccer team’s left winger).
But exactly how do the hemispheres of the brain work and
is it as simple as all that?

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