So many peple train Chi Gung for decades to achieve the "Iron Shirt" or "Iron Vest" Method of protection from Kyusho.
But it is not necessary as it is an anatomical and structural training process that creates this affect.
It starts with muscle constriction to produce a harder layer to penetrate, but it is not merely muscle that protects the Vital Structures. The process is not difficult to achieve, but it is demanding as it requires daily training. This is difficult for most to continue with and therefore it remains in the hands of very few people.
So what are the anatomical processes needed...
Watch the Anatomical Iron Shirt...