Aikido is a martial art which does not rely on physical strength. By harmonizing the aggressor's attack with correct timing, balance and posture one can easily subdue a larger opponent. Thus making aikido a martial art which irrelevant of size, stature or age, anyone can do. There are no competitions in Aikido. Techniques are practiced in a pre-arranged form where one person (shite) applies the technique, and one person (uke) receives it. Both roles are equally important in understanding the movement and principle of the technique. Self defence is not the only benefit of aikido. Improve posture, coordination and concentration, increase stamina and flexibilty, strengthen core muscles and the cardiovascular system, develop proper etiquette and face-to-face communicaton skills, and gain overall confidence while becoming both more physically and mentally fit.