1. A computer based method for predisposition modification, comprising: a) receiving a query attribute and a minimum strength of association value; b) accessing an attribute profile of an individual; c) accessing a set containing attribute combinations and corresponding strength of association values that indicate the strength of association of each of the attribute combinations with the query attribute; d) identifying one or more of the attribute combinations having corresponding strength of association values equal to or greater than the minimum strength of association value; e) selecting, from the identified attribute combinations, an attribute combination containing one or more attributes that do not occur in the attribute profile of the individual; and f) storing the one or more attributes that do not occur in the attribute profile of the individual as a set of attributes for predisposition modification of the individual.