> we conclude that improved early life environmental influences over ensuing decades likely explain these results Before iodisation of salt, many people in my

> we conclude that improved early life environmental influences over ensuing decades likely explain these results Before iodisation of salt, many people in my area were literally "cretins". Are parts of the US, in cutting school lunch programs, threatening hospital staff, etc., selflessly creating the conditions for a natural experiment in whether or not these effects reverse after suffering unfavourable early life environmental influences?