Did he have an innate predisposition to react differently?
There is not thought to be a single cause of substance abuse, though scientists are as of 2004 increasingly convinced that certain people possess a genetic predisposition which can affect the development of addictive behaviors.
Some theories about the causes of autism look to environmental factors while others focus on genetics as the source of the developmental disorders, and others see a possible combination of genetic predisposition and environmental triggers.
Daily Stress: Stress at home, at work, or other mental fatigue, including medical conditions, the death of a loved one, or financial strain can also trigger sleepwalking, especially if the individual has a genetic predisposition for it.
Its over-supply is, however, a frequent cause of predisposition to the attacks of parasitic Fungie.g.
The most prominent characteristics of his public life were his predisposition to "compromises" and "pacifications" which generally failed of their object, and his passionate patriotic devotion to the Union.
2 (1888); Eriksson & Hennings, Die Getreideroste (vide supra); Ward, "On the Question of Predisposition and Immunity in Plants," Proc. Cambridge Phil.
The only inkling of possible underlying principles in this orderly process is that there appears to be in respect to certain characters a potentiality or a predisposition through hereditary kinship to evolve in certain definite directions.
Indeed, the sophists generally had a special predisposition to error of this sort, not only because sophistry was from the beginning a substitute for the pursuit of truth, but also because the successful professor, travelling from city to city, or settling abroad, could take no part in public affairs, and thus was not at every step reminded of the importance of the " material " element of exposition and reasoning.
The preparation of the heart and faculties gives rise to a series of grades between the original predisposition and the full acquisition of actual intellect.