Physical deformities are common signs of nutritional deficiencies. The term “mouth breather” originated from the fact that certain people used to have underdeveloped nasal passages that caused them breathe through their mouths instead, resulting in them becoming prone to infection and dying young.
The Canadian dentist Weston A. Price noted that people of his time who ate traditionally instead of modern diets appeared as though they were clones from the same genetic template, with whole villages that seemed to be an extended family.
In contrast, the nutritionally starved people had all manner of deformity, depending on what exactly they were deficient in.
(extreme zinc deficiency can even result in underdeveloped genitals and facial hair, with the resulting person retaining child-like features in spite of being an adult)
That may not necessarily be genes.
Physical deformities are common signs of nutritional deficiencies. The term “mouth breather” originated from the fact that certain people used to have underdeveloped nasal passages that caused them breathe through their mouths instead, resulting in them becoming prone to infection and dying young.
The Canadian dentist Weston A. Price noted that people of his time who ate traditionally instead of modern diets appeared as though they were clones from the same genetic template, with whole villages that seemed to be an extended family.
In contrast, the nutritionally starved people had all manner of deformity, depending on what exactly they were deficient in.
(extreme zinc deficiency can even result in underdeveloped genitals and facial hair, with the resulting person retaining child-like features in spite of being an adult)