PoliticalChic
Diamond Member
- Thread starter
- #21
People were a lot smaller back then, meaning that over time, we're evolving to be taller humans.
While their are examples of human evolution in recent times, brown fat for example, but human average heights are more a function of changes and improvements in diets than with genetic mutation.
One interesting nutrition based changes has been onset ages of puberty in Asian females. Only two generations ago, the average onset of puberty in an Korean or Japanese girl was 17 or 18 years-old. Because of an increase in fat and dairy in the diet, that has gone down to be more in line with the Western onset of 13 or 14 years-old.
That is not evolution.