Startle reflex and stress response are biological and psychological realities that affect whether you can access their physical skills in a real-life encounter.
Born in Rio de Janeiro, Brazil, Jean Jacques Machado is one of five brothers of the world-renown Machado Brazilian jiu-jitsu family.
Jean Jacques Machado began his...
This is the first of a series of articles that I will write covering O-Sensei's (Chitose Tsuyoshi's) martial arts instructors. When I initially considered...
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