Dr. D'Adamo wrote, "As it happen, the survival strategies we've worked out with our 30,000 human genes...have fallen into six basic patterns. I can't tell you why there are six...For now, my statistical analysis has shown that we've got six GenoTypes, each with its unique strenghts and weakness" The ANSWER to why there are SIX patterns is because this is "HOW" our DNA...etc grouped itself to protect YOU and ensure your survival as demonstrated by the discovery of the "24 Human DNAs".