<p>
</p>
<p>May have to do with nutrition. We had a student who once did a science project on the height of FOB parents from India and how this compared with the heights of their US born kids (adjusted for gender). She hadn’t done a baseline comparison with heights where both generations were local, but in her sample of several hundred, the height went up by over 3" in just one generation. </p>
<p>Another topic that I’m generally not invited to for discussions, and not complaining, - age of menarche - also seems to point to almost all US born daughters having the onset at an age earlier than their FOB moms. Don’t know about IQ, though - I’m prejudiced that street smarts is really what matters, and I’m not sure there’s a reliable way to quantify that.</p>