The Modern Ninja Life｜When you are sure of success 30 minutes after the meeting
Methods to upraise mental concentration
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When establishing business strategies, it is necessary to be in a deeply concentrated state of mind to think of the best steps and also to disperse other thoughts. In order to bring your brain nerves in the best condition, first calm yourself down by using the Ninja breath control method which is to hide the sounds of your breath by attaching your mouth to the upper part of your arm and then practice Kuji.