ADRENALINE RUSH: THE SCIENCE OF RISK - Big Movie Zone

PART 1 / QUICK JUMPS / MAO AND ME: WHY SOME PEOPLE TAKE THE PLUNGE
MAO
AND ME:
WHY SOME PEOPLE TAKE
THE PLUNGE
Why do most people run from danger, while some run to it?
Some scientists now believe they may have found the answer
to that question – an answer located in the complex chemistry
of the human brain.
Inside the brain are billions of special molecules called neurotransmitters.
It is by controlling the flow of these molecules
that we formulate thoughts, make decisions and experience
various sensations and feelings. One particular neurotransmitter
called “serotonin” is linked with feelings of well-being and
anxiety.
Serotonin levels are regulated by another molecule called
Monoamine Oxidase (MAO) and extreme risk takers tend to
have about a third less MAO than the average person. It is
interesting to note that while low MAO levels are found in athletes,
performers, entrepreneurs and artists, they are also common
among those prone to anti-social behavior like crime and
drug or alcohol addiction – less recommendable kinds of risktaking.
Still, MAO is just one of many factors that shape a human
being. Personality, family and social context can also intervene,
as well as other factors like the male hormone testosterone or
a gene called D4DR which can cause variations in the levels of
another neurotransmitter called dopamine.
Serotonin
In other words, brain chemicals alone cannot explain why most
people choose the safe route and why some will prefer taking
chances and risks. Personality, upbringing and education, or
even the encouragement of peers can lead us either way.
MAO
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