Sacred Haven of Debauchery

Predispositions exist, and they are ubiquitous. Biology, 9th grade, introduction to genetics. Large parents have large children, and small parents have small children. This applies to both height and muscle mass, so it cannot be simply explained by saying that "in a family of overweight people, the child is overfed and gains weight due to the adults' neglect of their own weight, which is why they become overweight."

However, not all shortcomings should be justified by heredity.