F i r i n g t h e R i g h t C e l l s To g e t h e r
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must be regulated and balanced so that you feel positive about your
life and see the glass as (at least) half full. You ’ ll learn to calm down
in the face of stress and boost your mood when you ’ re down. You ’ ll
also learn to improve your memory, have better relationships, and
get a good night ’ s sleep, all of which rewire your brain and thus
enable you to be calmer and feel more positive.
Nurtured Nature
In order to rewire your brain, the fi rst thing you should do is learn
how the brain works. Your brain works in response to and in rela-
tion to the world around you. We have moved far away from the old
debate on nature versus nurture; now we are able to “ nurture nature. ”
Since your brain is not hardwired but is really “ soft - wired, ” your expe-
rience plays a major role in how you nurture your nature.
The brain weighs just three pounds, yet it ’ s one of the most
advanced organs in the body. It has a hundred billion nerve cells,
called
neurons
, and many more support cells. That ’ s equivalent to
the number of stars in our galaxy.
Let ’ s start with the brain ’ s architecture. The neurons are clus-
tered in the parts of the brain that have been called
modules
: the
cortex (the outer layer, which has two hemispheres), the four lobes,
and the subcortical (below the cortex) modules.
There has been a lot of hype about the character of the two halves
of the brain. “ Right - brain ” people were said to be more creative, even
more spiritual than “ left - brain ” people. The left - brain people were
described as more rigid and picky. That hype, born in the 1970s, still
exists, but many people who were instrumental in starting this fad
have long since abandoned it. The truth is that the two hemispheres
work together in everything you do. The brain contains a band of
fi bers called the
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