Bar and Bat Mitzvah to the event. However, this does not delay the onset of rights and responsibilities of being a Jewish adult which comes about strictly by virtue of age. The obligation to lay tefillin begins when a boy reaches bar mitzvah age. The common custom is for the bar mitzvah boy to begin putting on tefillin one to three months before his bar mitzvah. This way, by the time he is obligated in the commandment, he will already know how to fulfill it properly. The first mention of a party associated with a synagogue bar mitzvah was in the 13th century, so
Mitzvah Technique be performed under the direction of a suitable Mitzvah Technique teacher and does not substitute for necessary professional health care. It is best described in a booklet prepared by the founder of the Technique, M. Cohen-Nehemia: "The Mitzvah Exercise and Its Principle". The Mitzvah Technique is designed to improve posture and release tension and stress through exercises and therapeutic table work. It is based on the "Mitzvah Mechanism", an upward rippling motion that gently reinforces the body’s balance with gravity. It realigns, rebalances and exercises the entire body during sitting, standing and walking. As a result, this mechanism is readily