I think it’s possible the nutritional diet improved during this time as well. Additional vitamins and minerals at critical developmental stages are shown to be a standard deviation above average. https://www.adelaide.edu.au/news/news55161.html Another aspect in regards to the genetic diseases is that those sphingolipid issues involves electric signaling. Imagine a copper wire without a protective sheath. Not only does the signal degrade, it’s also slower. https://www.nature.com/scitable/topicpage/myelin-a-specialized-membrane-for-cell-communication-14367205/ A healthy, richer diet could finally take advantage of the Jewish overly abundant myelin development. Leading to literally faster thinking: https://www.npr.org/2009/03/20/102169531/smart-people-really-do-think-faster#:~:text=The%20smarter%20the%20person%2C%20the%20faster%20information%20zips%20around%20the,participants%20took%20standard%20IQ%20tests.
I think it’s possible the nutritional diet improved during this time as well. Additional vitamins and minerals at critical developmental stages are shown to be a standard deviation above average. https://www.adelaide.edu.au/news/news55161.html Another aspect in regards to the genetic diseases is that those sphingolipid issues involves electric signaling. Imagine a copper wire without a protective sheath. Not only does the signal degrade, it’s also slower. https://www.nature.com/scitable/topicpage/myelin-a-specialized-membrane-for-cell-communication-14367205/ A healthy, richer diet could finally take advantage of the Jewish overly abundant myelin development. Leading to literally faster thinking: https://www.npr.org/2009/03/20/102169531/smart-people-really-do-think-faster#:~:text=The%20smarter%20the%20person%2C%20the%20faster%20information%20zips%20around%20the,participants%20took%20standard%20IQ%20tests.