IQ Can Rise And Fall Throughout Teen Years  There's still hope
for all the stupid teenagers out there: according to a new
study, IQ isn't set in stone like scientists thought; it can
fluctuate more dramatically than the out-of-control hormones
coursing through teen veins.  NPR reports that scientists have
found that environmental tweaks can cause a teen's test results
to change much more than they expected,  "We were very
surprised," researcher Cathy Price, who led the project, tells
Shots. She had expected changes of a few points. "But we had
individuals that changed from being on the 50th percentile, with
an IQ of 100, [all] the way up to being in the (top) 3rd
percentile, with an IQ of 127." In other cases, performance
slipped by nearly as much, with kids shaving points off their
scores.  In addition, scientists were able to see how the brain
had changed structurally in ways that reflected the changes in
IQ.   They're not sure why students' IQ's changed, but one
theory contends that rigorous academic envir