There have been many misconceptions about the NinjaÕs powers.
Those spies/elite warriors had inherited a long tradition of training and dietary practices.
How can you endure humongous amounts of daily training for years without poisoning yourself?
TodayÕs professional athletes usually must put an end to their careers in their thirties, despite the drugs they are meticulously given.
How could the Ninja train their whole lives in order to be more and more effective on their missions?
This book reveals the nuts and bolts and necessary requirements that ensured their survival.