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Reasons:
I think the practice extreme sports athletes because it is a way to feel free.
Some scientists have determined that this passion for this sport is related to levels of certain substances such as adrenaline or certain neurotransmitters that
make some people more courageous than others.
To remove any kind of fear.
Sometimes it is good to relieve stress and promote teamwork (Paintball) can make you into a dangerous situation, sense of survival.
Video http://www.youtube.com/watch?v=3
WblmguSgvA