less than unmarried men and that levels decline when men get married and go up when they divorce. He also demonstrated that men had a decrease in immediately after they became fathers. "Perhaps this hormonal change is taking place to support the gentle activities of parenthood," concludes Dabbs. "Know thyself" is a central principle of philosophy that goes back as far as Socrates. "He that knoweth others is wise, and he that knoweth himself is wise. "Says Lao Tseu. Getting to know is surely an important part of our self knowledge ... Natural Ways to Boost Your Levels Systemic levels of are at .