There are many points he makes which I believe are important
for us as martial practitioners and teachers. Knowing that blood pressure rises
under stress to better deliver nutrients and oxygen to the body is one. We know
our mouth goes dry, but why? Some “unnecessary” systems are temporarily turned
off under stress, such as the digestive system, thus the mouth goes dry.
As has been stated in other books, the object is to let the
fear/stress rise to a level where it improves performance (and it does) and not
beyond where performance deteriorates or the fear overwhelms you. It’s called
the Yerkes-Dodson Law- “Increased stress leads to increased performance up to a
certain level of intensity, beyond which performance gradually levels off and
then declines.” This is why we stress students in the classroom, to get them
somewhat used to how the body and mind react on the street. There’s a
difference in the chemicals released into the bloodstream by physical stress
versus mental stress. Having a student exercise (run in place, do push-ups) to
induce stress works to a point but it’s just not the same.
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