Please be sure to eat all the food that is recommended on the Nutrisystem meal plan. You could be at risk of health issues if you do not maintain a healthy diet. 1  If you're pregnant, you may not join the Nutrisystem program.  If you're a nursing mother, you may not join the Nutrisystem program.
Quick Answer. According to The Free Dictionary, etiology, also spelled aetiology, is the study of exploration of the cause or factors contributing to something. In pathology, it specifically denotes the investigation into the cause or origins of a disease.
MYTH AND ETIOLOGY. An etiological interpretation of myth demands that a true myth must give the aitia, or cause or reason, for a fact, a ritual practice, or an institution. Thus narrowly defined, etiology imposes too limiting and rigid a criterion for definition.